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Finding the Fourth Proportional to 132,642.59, 183,168.35 and 84,260.11

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Solution

The fourth proportional to 132,642.59, 183,168.35 and 84,260.11 is: 116,356.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,642.59 : 183,168.35 = 84,260.11 : x
  2. Step 2: Convert to fraction form
    132,642.59/183,168.35 = 84,260.11/x
  3. Step 3: Cross multiply
    132,642.59x = 183,168.35 × 84,260.11
  4. Step 4: Simplify right side
    132,642.59x = 15,433,785,072.25
  5. Step 5: Solve for x
    x = 15,433,785,072.25/132,642.59
  6. Step 6: Final answer
    x = 116,356.18

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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.