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Finding the Fourth Proportional to 125,701.58, 173,418.72 and 71,957.64

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Solution

The fourth proportional to 125,701.58, 173,418.72 and 71,957.64 is: 99,273.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,701.58 : 173,418.72 = 71,957.64 : x
  2. Step 2: Convert to fraction form
    125,701.58/173,418.72 = 71,957.64/x
  3. Step 3: Cross multiply
    125,701.58x = 173,418.72 × 71,957.64
  4. Step 4: Simplify right side
    125,701.58x = 12,478,801,823.02
  5. Step 5: Solve for x
    x = 12,478,801,823.02/125,701.58
  6. Step 6: Final answer
    x = 99,273.23

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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.