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Finding the Fourth Proportional to 156,763.60, 216,358.22 and 88,784.08

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Solution

The fourth proportional to 156,763.60, 216,358.22 and 88,784.08 is: 122,535.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,763.60 : 216,358.22 = 88,784.08 : x
  2. Step 2: Convert to fraction form
    156,763.60/216,358.22 = 88,784.08/x
  3. Step 3: Cross multiply
    156,763.60x = 216,358.22 × 88,784.08
  4. Step 4: Simplify right side
    156,763.60x = 19,209,165,513.14
  5. Step 5: Solve for x
    x = 19,209,165,513.14/156,763.60
  6. Step 6: Final answer
    x = 122,535.88

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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.