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Finding the Fourth Proportional to 156,996.62, 216,579.13 and 93,289.30

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Solution

The fourth proportional to 156,996.62, 216,579.13 and 93,289.30 is: 128,693.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,996.62 : 216,579.13 = 93,289.30 : x
  2. Step 2: Convert to fraction form
    156,996.62/216,579.13 = 93,289.30/x
  3. Step 3: Cross multiply
    156,996.62x = 216,579.13 × 93,289.30
  4. Step 4: Simplify right side
    156,996.62x = 20,204,515,432.31
  5. Step 5: Solve for x
    x = 20,204,515,432.31/156,996.62
  6. Step 6: Final answer
    x = 128,693.95

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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.