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Finding the Fourth Proportional to 71,397.77, 98,539.78 and 45,567.47

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Solution

The fourth proportional to 71,397.77, 98,539.78 and 45,567.47 is: 62,890.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,397.77 : 98,539.78 = 45,567.47 : x
  2. Step 2: Convert to fraction form
    71,397.77/98,539.78 = 45,567.47/x
  3. Step 3: Cross multiply
    71,397.77x = 98,539.78 × 45,567.47
  4. Step 4: Simplify right side
    71,397.77x = 4,490,208,438.52
  5. Step 5: Solve for x
    x = 4,490,208,438.52/71,397.77
  6. Step 6: Final answer
    x = 62,890.03

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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.