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Finding the Fourth Proportional to 161,788.70, 242,585.85 and 83,056.70

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Solution

The fourth proportional to 161,788.70, 242,585.85 and 83,056.70 is: 124,535.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,788.70 : 242,585.85 = 83,056.70 : x
  2. Step 2: Convert to fraction form
    161,788.70/242,585.85 = 83,056.70/x
  3. Step 3: Cross multiply
    161,788.70x = 242,585.85 × 83,056.70
  4. Step 4: Simplify right side
    161,788.70x = 20,148,380,167.70
  5. Step 5: Solve for x
    x = 20,148,380,167.70/161,788.70
  6. Step 6: Final answer
    x = 124,535.15

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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.