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Finding the Fourth Proportional to 58,523.20, 87,655.20 and 48,155.20

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Solution

The fourth proportional to 58,523.20, 87,655.20 and 48,155.20 is: 72,126.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,523.20 : 87,655.20 = 48,155.20 : x
  2. Step 2: Convert to fraction form
    58,523.20/87,655.20 = 48,155.20/x
  3. Step 3: Cross multiply
    58,523.20x = 87,655.20 × 48,155.20
  4. Step 4: Simplify right side
    58,523.20x = 4,221,053,687.04
  5. Step 5: Solve for x
    x = 4,221,053,687.04/58,523.20
  6. Step 6: Final answer
    x = 72,126.16

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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.