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Finding the Fourth Proportional to 89,597.79, 123,593.52 and 56,005.47

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Solution

The fourth proportional to 89,597.79, 123,593.52 and 56,005.47 is: 77,255.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,597.79 : 123,593.52 = 56,005.47 : x
  2. Step 2: Convert to fraction form
    89,597.79/123,593.52 = 56,005.47/x
  3. Step 3: Cross multiply
    89,597.79x = 123,593.52 × 56,005.47
  4. Step 4: Simplify right side
    89,597.79x = 6,921,913,176.55
  5. Step 5: Solve for x
    x = 6,921,913,176.55/89,597.79
  6. Step 6: Final answer
    x = 77,255.40

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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.