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Finding the Fourth Proportional to 98,572.40, 147,880.20 and 32,001.20

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Solution

The fourth proportional to 98,572.40, 147,880.20 and 32,001.20 is: 48,008.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,572.40 : 147,880.20 = 32,001.20 : x
  2. Step 2: Convert to fraction form
    98,572.40/147,880.20 = 32,001.20/x
  3. Step 3: Cross multiply
    98,572.40x = 147,880.20 × 32,001.20
  4. Step 4: Simplify right side
    98,572.40x = 4,732,343,856.24
  5. Step 5: Solve for x
    x = 4,732,343,856.24/98,572.40
  6. Step 6: Final answer
    x = 48,008.81

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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.