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Finding the Fourth Proportional to 98,627.40, 147,722.40 and 39,432.60

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Solution

The fourth proportional to 98,627.40, 147,722.40 and 39,432.60 is: 59,061.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,627.40 : 147,722.40 = 39,432.60 : x
  2. Step 2: Convert to fraction form
    98,627.40/147,722.40 = 39,432.60/x
  3. Step 3: Cross multiply
    98,627.40x = 147,722.40 × 39,432.60
  4. Step 4: Simplify right side
    98,627.40x = 5,825,078,310.24
  5. Step 5: Solve for x
    x = 5,825,078,310.24/98,627.40
  6. Step 6: Final answer
    x = 59,061.46

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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.