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Finding the Fourth Proportional to 127,951.93, 176,573.97 and 71,366.95

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Solution

The fourth proportional to 127,951.93, 176,573.97 and 71,366.95 is: 98,486.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,951.93 : 176,573.97 = 71,366.95 : x
  2. Step 2: Convert to fraction form
    127,951.93/176,573.97 = 71,366.95/x
  3. Step 3: Cross multiply
    127,951.93x = 176,573.97 × 71,366.95
  4. Step 4: Simplify right side
    127,951.93x = 12,601,545,688.29
  5. Step 5: Solve for x
    x = 12,601,545,688.29/127,951.93
  6. Step 6: Final answer
    x = 98,486.56

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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.