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Finding the Fourth Proportional to 156,909.03, 216,527.28 and 88,922.02

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Solution

The fourth proportional to 156,909.03, 216,527.28 and 88,922.02 is: 122,708.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,909.03 : 216,527.28 = 88,922.02 : x
  2. Step 2: Convert to fraction form
    156,909.03/216,527.28 = 88,922.02/x
  3. Step 3: Cross multiply
    156,909.03x = 216,527.28 × 88,922.02
  4. Step 4: Simplify right side
    156,909.03x = 19,254,043,122.71
  5. Step 5: Solve for x
    x = 19,254,043,122.71/156,909.03
  6. Step 6: Final answer
    x = 122,708.32

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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.