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Finding the Fourth Proportional to 98,744.80, 148,117.20 and 24,872.80

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Solution

The fourth proportional to 98,744.80, 148,117.20 and 24,872.80 is: 37,309.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,744.80 : 148,117.20 = 24,872.80 : x
  2. Step 2: Convert to fraction form
    98,744.80/148,117.20 = 24,872.80/x
  3. Step 3: Cross multiply
    98,744.80x = 148,117.20 × 24,872.80
  4. Step 4: Simplify right side
    98,744.80x = 3,684,089,492.16
  5. Step 5: Solve for x
    x = 3,684,089,492.16/98,744.80
  6. Step 6: Final answer
    x = 37,309.20

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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.