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Finding the Fourth Proportional to 173,691.80, 260,624.10 and 98,869.40

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Solution

The fourth proportional to 173,691.80, 260,624.10 and 98,869.40 is: 148,353.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,691.80 : 260,624.10 = 98,869.40 : x
  2. Step 2: Convert to fraction form
    173,691.80/260,624.10 = 98,869.40/x
  3. Step 3: Cross multiply
    173,691.80x = 260,624.10 × 98,869.40
  4. Step 4: Simplify right side
    173,691.80x = 25,767,748,392.54
  5. Step 5: Solve for x
    x = 25,767,748,392.54/173,691.80
  6. Step 6: Final answer
    x = 148,353.28

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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.