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Finding the Fourth Proportional to 121,957.48, 182,957.98 and 43,117.48

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Solution

The fourth proportional to 121,957.48, 182,957.98 and 43,117.48 is: 64,683.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,957.48 : 182,957.98 = 43,117.48 : x
  2. Step 2: Convert to fraction form
    121,957.48/182,957.98 = 43,117.48/x
  3. Step 3: Cross multiply
    121,957.48x = 182,957.98 × 43,117.48
  4. Step 4: Simplify right side
    121,957.48x = 7,888,687,043.49
  5. Step 5: Solve for x
    x = 7,888,687,043.49/121,957.48
  6. Step 6: Final answer
    x = 64,683.91

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.