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Finding the Fourth Proportional to 374,480.70, 561,721.04 and 125,162.70

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Solution

The fourth proportional to 374,480.70, 561,721.04 and 125,162.70 is: 187,744.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,480.70 : 561,721.04 = 125,162.70 : x
  2. Step 2: Convert to fraction form
    374,480.70/561,721.04 = 125,162.70/x
  3. Step 3: Cross multiply
    374,480.70x = 561,721.04 × 125,162.70
  4. Step 4: Simplify right side
    374,480.70x = 70,306,522,013.21
  5. Step 5: Solve for x
    x = 70,306,522,013.21/374,480.70
  6. Step 6: Final answer
    x = 187,744.05

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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.