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Finding the Fourth Proportional to 156,843.46, 216,419.61 and 93,179.62

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Solution

The fourth proportional to 156,843.46, 216,419.61 and 93,179.62 is: 128,573.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,843.46 : 216,419.61 = 93,179.62 : x
  2. Step 2: Convert to fraction form
    156,843.46/216,419.61 = 93,179.62/x
  3. Step 3: Cross multiply
    156,843.46x = 216,419.61 × 93,179.62
  4. Step 4: Simplify right side
    156,843.46x = 20,165,897,020.35
  5. Step 5: Solve for x
    x = 20,165,897,020.35/156,843.46
  6. Step 6: Final answer
    x = 128,573.40

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1.5x scale

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.