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Finding the Fourth Proportional to 374,534.58, 561,799.71 and 125,214.42

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Solution

The fourth proportional to 374,534.58, 561,799.71 and 125,214.42 is: 187,820.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,534.58 : 561,799.71 = 125,214.42 : x
  2. Step 2: Convert to fraction form
    374,534.58/561,799.71 = 125,214.42/x
  3. Step 3: Cross multiply
    374,534.58x = 561,799.71 × 125,214.42
  4. Step 4: Simplify right side
    374,534.58x = 70,345,424,843.82
  5. Step 5: Solve for x
    x = 70,345,424,843.82/374,534.58
  6. Step 6: Final answer
    x = 187,820.91

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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.