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Finding the Fourth Proportional to 194,737.20, 291,990.60 and 101,425.20

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Solution

The fourth proportional to 194,737.20, 291,990.60 and 101,425.20 is: 152,077.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,737.20 : 291,990.60 = 101,425.20 : x
  2. Step 2: Convert to fraction form
    194,737.20/291,990.60 = 101,425.20/x
  3. Step 3: Cross multiply
    194,737.20x = 291,990.60 × 101,425.20
  4. Step 4: Simplify right side
    194,737.20x = 29,615,205,003.12
  5. Step 5: Solve for x
    x = 29,615,205,003.12/194,737.20
  6. Step 6: Final answer
    x = 152,077.80

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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.