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Finding the Fourth Proportional to 247,910.40, 372,211.20 and 154,598.40

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Solution

The fourth proportional to 247,910.40, 372,211.20 and 154,598.40 is: 232,113.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,910.40 : 372,211.20 = 154,598.40 : x
  2. Step 2: Convert to fraction form
    247,910.40/372,211.20 = 154,598.40/x
  3. Step 3: Cross multiply
    247,910.40x = 372,211.20 × 154,598.40
  4. Step 4: Simplify right side
    247,910.40x = 57,543,255,982.08
  5. Step 5: Solve for x
    x = 57,543,255,982.08/247,910.40
  6. Step 6: Final answer
    x = 232,113.12

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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.