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Finding the Fourth Proportional to 567,415.40, 851,123.10 and 168,117.80

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Solution

The fourth proportional to 567,415.40, 851,123.10 and 168,117.80 is: 252,176.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,415.40 : 851,123.10 = 168,117.80 : x
  2. Step 2: Convert to fraction form
    567,415.40/851,123.10 = 168,117.80/x
  3. Step 3: Cross multiply
    567,415.40x = 851,123.10 × 168,117.80
  4. Step 4: Simplify right side
    567,415.40x = 143,088,943,101.18
  5. Step 5: Solve for x
    x = 143,088,943,101.18/567,415.40
  6. Step 6: Final answer
    x = 252,176.70

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.