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Finding the Fourth Proportional to 156,866.83, 216,478.98 and 88,882.11

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Solution

The fourth proportional to 156,866.83, 216,478.98 and 88,882.11 is: 122,658.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,866.83 : 216,478.98 = 88,882.11 : x
  2. Step 2: Convert to fraction form
    156,866.83/216,478.98 = 88,882.11/x
  3. Step 3: Cross multiply
    156,866.83x = 216,478.98 × 88,882.11
  4. Step 4: Simplify right side
    156,866.83x = 19,241,108,513.05
  5. Step 5: Solve for x
    x = 19,241,108,513.05/156,866.83
  6. Step 6: Final answer
    x = 122,658.87

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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.