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Finding the Fourth Proportional to 157,231.80, 235,847.70 and 156,065.40

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Solution

The fourth proportional to 157,231.80, 235,847.70 and 156,065.40 is: 234,098.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,231.80 : 235,847.70 = 156,065.40 : x
  2. Step 2: Convert to fraction form
    157,231.80/235,847.70 = 156,065.40/x
  3. Step 3: Cross multiply
    157,231.80x = 235,847.70 × 156,065.40
  4. Step 4: Simplify right side
    157,231.80x = 36,807,665,639.58
  5. Step 5: Solve for x
    x = 36,807,665,639.58/157,231.80
  6. Step 6: Final answer
    x = 234,098.10

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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.