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Finding the Fourth Proportional to 156,813.57, 216,355.05 and 88,819.74

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Solution

The fourth proportional to 156,813.57, 216,355.05 and 88,819.74 is: 122,544.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,813.57 : 216,355.05 = 88,819.74 : x
  2. Step 2: Convert to fraction form
    156,813.57/216,355.05 = 88,819.74/x
  3. Step 3: Cross multiply
    156,813.57x = 216,355.05 × 88,819.74
  4. Step 4: Simplify right side
    156,813.57x = 19,216,599,288.69
  5. Step 5: Solve for x
    x = 19,216,599,288.69/156,813.57
  6. Step 6: Final answer
    x = 122,544.24

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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.