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Finding the Fourth Proportional to 98,939.60, 148,423.80 and 32,363.60

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Solution

The fourth proportional to 98,939.60, 148,423.80 and 32,363.60 is: 48,550.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,939.60 : 148,423.80 = 32,363.60 : x
  2. Step 2: Convert to fraction form
    98,939.60/148,423.80 = 32,363.60/x
  3. Step 3: Cross multiply
    98,939.60x = 148,423.80 × 32,363.60
  4. Step 4: Simplify right side
    98,939.60x = 4,803,528,493.68
  5. Step 5: Solve for x
    x = 4,803,528,493.68/98,939.60
  6. Step 6: Final answer
    x = 48,550.11

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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.