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Finding the Fourth Proportional to 132,951.71, 183,466.62 and 72,521.87

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Solution

The fourth proportional to 132,951.71, 183,466.62 and 72,521.87 is: 100,076.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,951.71 : 183,466.62 = 72,521.87 : x
  2. Step 2: Convert to fraction form
    132,951.71/183,466.62 = 72,521.87/x
  3. Step 3: Cross multiply
    132,951.71x = 183,466.62 × 72,521.87
  4. Step 4: Simplify right side
    132,951.71x = 13,305,341,447.65
  5. Step 5: Solve for x
    x = 13,305,341,447.65/132,951.71
  6. Step 6: Final answer
    x = 100,076.50

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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.