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Finding the Fourth Proportional to 101,490.71, 140,071.68 and 59,062.91

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Solution

The fourth proportional to 101,490.71, 140,071.68 and 59,062.91 is: 81,515.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,490.71 : 140,071.68 = 59,062.91 : x
  2. Step 2: Convert to fraction form
    101,490.71/140,071.68 = 59,062.91/x
  3. Step 3: Cross multiply
    101,490.71x = 140,071.68 × 59,062.91
  4. Step 4: Simplify right side
    101,490.71x = 8,273,040,329.03
  5. Step 5: Solve for x
    x = 8,273,040,329.03/101,490.71
  6. Step 6: Final answer
    x = 81,515.25

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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.