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Finding the Fourth Proportional to 67,700.20, 101,567.82 and 39,643.96

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Solution

The fourth proportional to 67,700.20, 101,567.82 and 39,643.96 is: 59,476.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,700.20 : 101,567.82 = 39,643.96 : x
  2. Step 2: Convert to fraction form
    67,700.20/101,567.82 = 39,643.96/x
  3. Step 3: Cross multiply
    67,700.20x = 101,567.82 × 39,643.96
  4. Step 4: Simplify right side
    67,700.20x = 4,026,550,593.37
  5. Step 5: Solve for x
    x = 4,026,550,593.37/67,700.20
  6. Step 6: Final answer
    x = 59,476.20

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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.