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Finding the Fourth Proportional to 100,904.90, 151,472.55 and 59,375.30

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Solution

The fourth proportional to 100,904.90, 151,472.55 and 59,375.30 is: 89,130.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,904.90 : 151,472.55 = 59,375.30 : x
  2. Step 2: Convert to fraction form
    100,904.90/151,472.55 = 59,375.30/x
  3. Step 3: Cross multiply
    100,904.90x = 151,472.55 × 59,375.30
  4. Step 4: Simplify right side
    100,904.90x = 8,993,728,098.02
  5. Step 5: Solve for x
    x = 8,993,728,098.02/100,904.90
  6. Step 6: Final answer
    x = 89,130.74

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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.