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Finding the Fourth Proportional to 101,605.62, 140,284.25 and 63,423.32

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Solution

The fourth proportional to 101,605.62, 140,284.25 and 63,423.32 is: 87,566.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,605.62 : 140,284.25 = 63,423.32 : x
  2. Step 2: Convert to fraction form
    101,605.62/140,284.25 = 63,423.32/x
  3. Step 3: Cross multiply
    101,605.62x = 140,284.25 × 63,423.32
  4. Step 4: Simplify right side
    101,605.62x = 8,897,292,878.71
  5. Step 5: Solve for x
    x = 8,897,292,878.71/101,605.62
  6. Step 6: Final answer
    x = 87,566.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.