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Finding the Fourth Proportional to 356,544.60, 534,816.90 and 156,652.80

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Solution

The fourth proportional to 356,544.60, 534,816.90 and 156,652.80 is: 234,979.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,544.60 : 534,816.90 = 156,652.80 : x
  2. Step 2: Convert to fraction form
    356,544.60/534,816.90 = 156,652.80/x
  3. Step 3: Cross multiply
    356,544.60x = 534,816.90 × 156,652.80
  4. Step 4: Simplify right side
    356,544.60x = 83,780,564,872.32
  5. Step 5: Solve for x
    x = 83,780,564,872.32/356,544.60
  6. Step 6: Final answer
    x = 234,979.20

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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.