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Finding the Fourth Proportional to 374,586.88, 561,763.20 and 125,210.56

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Solution

The fourth proportional to 374,586.88, 561,763.20 and 125,210.56 is: 187,776.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,586.88 : 561,763.20 = 125,210.56 : x
  2. Step 2: Convert to fraction form
    374,586.88/561,763.20 = 125,210.56/x
  3. Step 3: Cross multiply
    374,586.88x = 561,763.20 × 125,210.56
  4. Step 4: Simplify right side
    374,586.88x = 70,338,684,859.39
  5. Step 5: Solve for x
    x = 70,338,684,859.39/374,586.88
  6. Step 6: Final answer
    x = 187,776.69

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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.