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Finding the Fourth Proportional to 156,854.69, 216,458.92 and 88,884.60

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Solution

The fourth proportional to 156,854.69, 216,458.92 and 88,884.60 is: 122,660.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,854.69 : 216,458.92 = 88,884.60 : x
  2. Step 2: Convert to fraction form
    156,854.69/216,458.92 = 88,884.60/x
  3. Step 3: Cross multiply
    156,854.69x = 216,458.92 × 88,884.60
  4. Step 4: Simplify right side
    156,854.69x = 19,239,864,520.63
  5. Step 5: Solve for x
    x = 19,239,864,520.63/156,854.69
  6. Step 6: Final answer
    x = 122,660.44

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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.