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Finding the Fourth Proportional to 156,062.88, 215,366.52 and 88,094.16

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Solution

The fourth proportional to 156,062.88, 215,366.52 and 88,094.16 is: 121,569.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,062.88 : 215,366.52 = 88,094.16 : x
  2. Step 2: Convert to fraction form
    156,062.88/215,366.52 = 88,094.16/x
  3. Step 3: Cross multiply
    156,062.88x = 215,366.52 × 88,094.16
  4. Step 4: Simplify right side
    156,062.88x = 18,972,532,671.52
  5. Step 5: Solve for x
    x = 18,972,532,671.52/156,062.88
  6. Step 6: Final answer
    x = 121,569.80

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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.