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Finding the Fourth Proportional to 156,957.39, 216,608.60 and 88,975.68

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Solution

The fourth proportional to 156,957.39, 216,608.60 and 88,975.68 is: 122,790.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,957.39 : 216,608.60 = 88,975.68 : x
  2. Step 2: Convert to fraction form
    156,957.39/216,608.60 = 88,975.68/x
  3. Step 3: Cross multiply
    156,957.39x = 216,608.60 × 88,975.68
  4. Step 4: Simplify right side
    156,957.39x = 19,272,897,033.97
  5. Step 5: Solve for x
    x = 19,272,897,033.97/156,957.39
  6. Step 6: Final answer
    x = 122,790.64

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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.