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Finding the Fourth Proportional to 74,552.65, 102,885.47 and 42,727.68

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Solution

The fourth proportional to 74,552.65, 102,885.47 and 42,727.68 is: 58,965.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,552.65 : 102,885.47 = 42,727.68 : x
  2. Step 2: Convert to fraction form
    74,552.65/102,885.47 = 42,727.68/x
  3. Step 3: Cross multiply
    74,552.65x = 102,885.47 × 42,727.68
  4. Step 4: Simplify right side
    74,552.65x = 4,396,057,438.81
  5. Step 5: Solve for x
    x = 4,396,057,438.81/74,552.65
  6. Step 6: Final answer
    x = 58,965.81

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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.