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Finding the Fourth Proportional to 156,697.70, 235,046.55 and 149,872.10

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Solution

The fourth proportional to 156,697.70, 235,046.55 and 149,872.10 is: 224,808.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,697.70 : 235,046.55 = 149,872.10 : x
  2. Step 2: Convert to fraction form
    156,697.70/235,046.55 = 149,872.10/x
  3. Step 3: Cross multiply
    156,697.70x = 235,046.55 × 149,872.10
  4. Step 4: Simplify right side
    156,697.70x = 35,226,920,046.26
  5. Step 5: Solve for x
    x = 35,226,920,046.26/156,697.70
  6. Step 6: Final answer
    x = 224,808.15

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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.