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Finding the Fourth Proportional to 130,290.52, 179,715.90 and 82,494.04

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Solution

The fourth proportional to 130,290.52, 179,715.90 and 82,494.04 is: 113,787.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,290.52 : 179,715.90 = 82,494.04 : x
  2. Step 2: Convert to fraction form
    130,290.52/179,715.90 = 82,494.04/x
  3. Step 3: Cross multiply
    130,290.52x = 179,715.90 × 82,494.04
  4. Step 4: Simplify right side
    130,290.52x = 14,825,490,643.24
  5. Step 5: Solve for x
    x = 14,825,490,643.24/130,290.52
  6. Step 6: Final answer
    x = 113,787.95

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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.