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Finding the Fourth Proportional to 432,073.20, 648,158.40 and 132,551.40

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Solution

The fourth proportional to 432,073.20, 648,158.40 and 132,551.40 is: 198,842.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,073.20 : 648,158.40 = 132,551.40 : x
  2. Step 2: Convert to fraction form
    432,073.20/648,158.40 = 132,551.40/x
  3. Step 3: Cross multiply
    432,073.20x = 648,158.40 × 132,551.40
  4. Step 4: Simplify right side
    432,073.20x = 85,914,303,341.76
  5. Step 5: Solve for x
    x = 85,914,303,341.76/432,073.20
  6. Step 6: Final answer
    x = 198,842.01

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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.