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Finding the Fourth Proportional to 58,145.60, 87,002.40 and 42,593.60

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Solution

The fourth proportional to 58,145.60, 87,002.40 and 42,593.60 is: 63,732.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,145.60 : 87,002.40 = 42,593.60 : x
  2. Step 2: Convert to fraction form
    58,145.60/87,002.40 = 42,593.60/x
  3. Step 3: Cross multiply
    58,145.60x = 87,002.40 × 42,593.60
  4. Step 4: Simplify right side
    58,145.60x = 3,705,745,424.64
  5. Step 5: Solve for x
    x = 3,705,745,424.64/58,145.60
  6. Step 6: Final answer
    x = 63,732.17

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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.