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Finding the Fourth Proportional to 131,117.96, 180,940.95 and 73,752.95

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Solution

The fourth proportional to 131,117.96, 180,940.95 and 73,752.95 is: 101,778.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,117.96 : 180,940.95 = 73,752.95 : x
  2. Step 2: Convert to fraction form
    131,117.96/180,940.95 = 73,752.95/x
  3. Step 3: Cross multiply
    131,117.96x = 180,940.95 × 73,752.95
  4. Step 4: Simplify right side
    131,117.96x = 13,344,928,838.30
  5. Step 5: Solve for x
    x = 13,344,928,838.30/131,117.96
  6. Step 6: Final answer
    x = 101,778.04

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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.