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Finding the Fourth Proportional to 469,311.76, 703,905.06 and 132,379.48

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Solution

The fourth proportional to 469,311.76, 703,905.06 and 132,379.48 is: 198,551.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,311.76 : 703,905.06 = 132,379.48 : x
  2. Step 2: Convert to fraction form
    469,311.76/703,905.06 = 132,379.48/x
  3. Step 3: Cross multiply
    469,311.76x = 703,905.06 × 132,379.48
  4. Step 4: Simplify right side
    469,311.76x = 93,182,585,812.17
  5. Step 5: Solve for x
    x = 93,182,585,812.17/469,311.76
  6. Step 6: Final answer
    x = 198,551.57

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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.