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Finding the Fourth Proportional to 122,292.48, 168,685.92 and 88,350.78

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Solution

The fourth proportional to 122,292.48, 168,685.92 and 88,350.78 is: 121,867.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,292.48 : 168,685.92 = 88,350.78 : x
  2. Step 2: Convert to fraction form
    122,292.48/168,685.92 = 88,350.78/x
  3. Step 3: Cross multiply
    122,292.48x = 168,685.92 × 88,350.78
  4. Step 4: Simplify right side
    122,292.48x = 14,903,532,607.02
  5. Step 5: Solve for x
    x = 14,903,532,607.02/122,292.48
  6. Step 6: Final answer
    x = 121,867.94

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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.