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Finding the Fourth Proportional to 73,519.66, 109,781.51 and 58,356.66

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Solution

The fourth proportional to 73,519.66, 109,781.51 and 58,356.66 is: 87,139.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,519.66 : 109,781.51 = 58,356.66 : x
  2. Step 2: Convert to fraction form
    73,519.66/109,781.51 = 58,356.66/x
  3. Step 3: Cross multiply
    73,519.66x = 109,781.51 × 58,356.66
  4. Step 4: Simplify right side
    73,519.66x = 6,406,482,373.25
  5. Step 5: Solve for x
    x = 6,406,482,373.25/73,519.66
  6. Step 6: Final answer
    x = 87,139.72

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.