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Finding the Fourth Proportional to 391,875.53, 587,896.41 and 125,822.93

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Solution

The fourth proportional to 391,875.53, 587,896.41 and 125,822.93 is: 188,761.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,875.53 : 587,896.41 = 125,822.93 : x
  2. Step 2: Convert to fraction form
    391,875.53/587,896.41 = 125,822.93/x
  3. Step 3: Cross multiply
    391,875.53x = 587,896.41 × 125,822.93
  4. Step 4: Simplify right side
    391,875.53x = 73,970,845,903.20
  5. Step 5: Solve for x
    x = 73,970,845,903.20/391,875.53
  6. Step 6: Final answer
    x = 188,761.08

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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.