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Finding the Fourth Proportional to 469,310.76, 703,903.56 and 132,378.48

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Solution

The fourth proportional to 469,310.76, 703,903.56 and 132,378.48 is: 198,550.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,310.76 : 703,903.56 = 132,378.48 : x
  2. Step 2: Convert to fraction form
    469,310.76/703,903.56 = 132,378.48/x
  3. Step 3: Cross multiply
    469,310.76x = 703,903.56 × 132,378.48
  4. Step 4: Simplify right side
    469,310.76x = 93,181,683,339.39
  5. Step 5: Solve for x
    x = 93,181,683,339.39/469,310.76
  6. Step 6: Final answer
    x = 198,550.07

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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.