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Finding the Fourth Proportional to 156,690.48, 235,469.44 and 152,892.32

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Solution

The fourth proportional to 156,690.48, 235,469.44 and 152,892.32 is: 229,761.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,690.48 : 235,469.44 = 152,892.32 : x
  2. Step 2: Convert to fraction form
    156,690.48/235,469.44 = 152,892.32/x
  3. Step 3: Cross multiply
    156,690.48x = 235,469.44 × 152,892.32
  4. Step 4: Simplify right side
    156,690.48x = 36,001,468,970.70
  5. Step 5: Solve for x
    x = 36,001,468,970.70/156,690.48
  6. Step 6: Final answer
    x = 229,761.69

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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.