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Finding the Fourth Proportional to 178,703.60, 267,976.67 and 83,960.71

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Solution

The fourth proportional to 178,703.60, 267,976.67 and 83,960.71 is: 125,904.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,703.60 : 267,976.67 = 83,960.71 : x
  2. Step 2: Convert to fraction form
    178,703.60/267,976.67 = 83,960.71/x
  3. Step 3: Cross multiply
    178,703.60x = 267,976.67 × 83,960.71
  4. Step 4: Simplify right side
    178,703.60x = 22,499,510,386.89
  5. Step 5: Solve for x
    x = 22,499,510,386.89/178,703.60
  6. Step 6: Final answer
    x = 125,904.07

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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.