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Finding the Fourth Proportional to 374,555.47, 561,849.62 and 108,342.90

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Solution

The fourth proportional to 374,555.47, 561,849.62 and 108,342.90 is: 162,519.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,555.47 : 561,849.62 = 108,342.90 : x
  2. Step 2: Convert to fraction form
    374,555.47/561,849.62 = 108,342.90/x
  3. Step 3: Cross multiply
    374,555.47x = 561,849.62 × 108,342.90
  4. Step 4: Simplify right side
    374,555.47x = 60,872,417,194.70
  5. Step 5: Solve for x
    x = 60,872,417,194.70/374,555.47
  6. Step 6: Final answer
    x = 162,519.10

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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.