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Finding the Fourth Proportional to 129,624.60, 194,218.20 and 62,921.10

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Solution

The fourth proportional to 129,624.60, 194,218.20 and 62,921.10 is: 94,275.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,624.60 : 194,218.20 = 62,921.10 : x
  2. Step 2: Convert to fraction form
    129,624.60/194,218.20 = 62,921.10/x
  3. Step 3: Cross multiply
    129,624.60x = 194,218.20 × 62,921.10
  4. Step 4: Simplify right side
    129,624.60x = 12,220,422,784.02
  5. Step 5: Solve for x
    x = 12,220,422,784.02/129,624.60
  6. Step 6: Final answer
    x = 94,275.49

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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.