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Finding the Fourth Proportional to 176,545.40, 264,587.70 and 81,764.60

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Solution

The fourth proportional to 176,545.40, 264,587.70 and 81,764.60 is: 122,540.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,545.40 : 264,587.70 = 81,764.60 : x
  2. Step 2: Convert to fraction form
    176,545.40/264,587.70 = 81,764.60/x
  3. Step 3: Cross multiply
    176,545.40x = 264,587.70 × 81,764.60
  4. Step 4: Simplify right side
    176,545.40x = 21,633,907,455.42
  5. Step 5: Solve for x
    x = 21,633,907,455.42/176,545.40
  6. Step 6: Final answer
    x = 122,540.19

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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.