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Finding the Fourth Proportional to 344,221.52, 516,210.10 and 100,994.70

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Solution

The fourth proportional to 344,221.52, 516,210.10 and 100,994.70 is: 151,456.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    344,221.52 : 516,210.10 = 100,994.70 : x
  2. Step 2: Convert to fraction form
    344,221.52/516,210.10 = 100,994.70/x
  3. Step 3: Cross multiply
    344,221.52x = 516,210.10 × 100,994.70
  4. Step 4: Simplify right side
    344,221.52x = 52,134,486,019.70
  5. Step 5: Solve for x
    x = 52,134,486,019.70/344,221.52
  6. Step 6: Final answer
    x = 151,456.21

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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.