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Finding the Fourth Proportional to 156,505.66, 215,980.75 and 96,046.04

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Solution

The fourth proportional to 156,505.66, 215,980.75 and 96,046.04 is: 132,545.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,505.66 : 215,980.75 = 96,046.04 : x
  2. Step 2: Convert to fraction form
    156,505.66/215,980.75 = 96,046.04/x
  3. Step 3: Cross multiply
    156,505.66x = 215,980.75 × 96,046.04
  4. Step 4: Simplify right side
    156,505.66x = 20,744,096,533.80
  5. Step 5: Solve for x
    x = 20,744,096,533.80/156,505.66
  6. Step 6: Final answer
    x = 132,545.35

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.