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Finding the Fourth Proportional to 175,043.70, 261,909.45 and 115,994.70

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Solution

The fourth proportional to 175,043.70, 261,909.45 and 115,994.70 is: 173,557.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    175,043.70 : 261,909.45 = 115,994.70 : x
  2. Step 2: Convert to fraction form
    175,043.70/261,909.45 = 115,994.70/x
  3. Step 3: Cross multiply
    175,043.70x = 261,909.45 × 115,994.70
  4. Step 4: Simplify right side
    175,043.70x = 30,380,108,079.92
  5. Step 5: Solve for x
    x = 30,380,108,079.92/175,043.70
  6. Step 6: Final answer
    x = 173,557.28

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1.5x scale

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.