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Finding the Fourth Proportional to 440,620.84, 660,929.90 and 125,077.96

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Solution

The fourth proportional to 440,620.84, 660,929.90 and 125,077.96 is: 187,616.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,620.84 : 660,929.90 = 125,077.96 : x
  2. Step 2: Convert to fraction form
    440,620.84/660,929.90 = 125,077.96/x
  3. Step 3: Cross multiply
    440,620.84x = 660,929.90 × 125,077.96
  4. Step 4: Simplify right side
    440,620.84x = 82,667,763,595.00
  5. Step 5: Solve for x
    x = 82,667,763,595.00/440,620.84
  6. Step 6: Final answer
    x = 187,616.55

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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.