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Finding the Fourth Proportional to 127,949.43, 176,570.52 and 71,364.45

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Solution

The fourth proportional to 127,949.43, 176,570.52 and 71,364.45 is: 98,483.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,949.43 : 176,570.52 = 71,364.45 : x
  2. Step 2: Convert to fraction form
    127,949.43/176,570.52 = 71,364.45/x
  3. Step 3: Cross multiply
    127,949.43x = 176,570.52 × 71,364.45
  4. Step 4: Simplify right side
    127,949.43x = 12,600,858,046.01
  5. Step 5: Solve for x
    x = 12,600,858,046.01/127,949.43
  6. Step 6: Final answer
    x = 98,483.11

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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.