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Finding the Fourth Proportional to 67,691.40, 101,547.10 and 63,539.74

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Solution

The fourth proportional to 67,691.40, 101,547.10 and 63,539.74 is: 95,319.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,691.40 : 101,547.10 = 63,539.74 : x
  2. Step 2: Convert to fraction form
    67,691.40/101,547.10 = 63,539.74/x
  3. Step 3: Cross multiply
    67,691.40x = 101,547.10 × 63,539.74
  4. Step 4: Simplify right side
    67,691.40x = 6,452,276,538.11
  5. Step 5: Solve for x
    x = 6,452,276,538.11/67,691.40
  6. Step 6: Final answer
    x = 95,319.01

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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.