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Finding the Fourth Proportional to 440,424.40, 660,661.72 and 124,856.50

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Solution

The fourth proportional to 440,424.40, 660,661.72 and 124,856.50 is: 187,291.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,424.40 : 660,661.72 = 124,856.50 : x
  2. Step 2: Convert to fraction form
    440,424.40/660,661.72 = 124,856.50/x
  3. Step 3: Cross multiply
    440,424.40x = 660,661.72 × 124,856.50
  4. Step 4: Simplify right side
    440,424.40x = 82,487,910,043.18
  5. Step 5: Solve for x
    x = 82,487,910,043.18/440,424.40
  6. Step 6: Final answer
    x = 187,291.87

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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.