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Finding the Fourth Proportional to 374,104.66, 561,380.55 and 137,471.26

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Solution

The fourth proportional to 374,104.66, 561,380.55 and 137,471.26 is: 206,289.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,104.66 : 561,380.55 = 137,471.26 : x
  2. Step 2: Convert to fraction form
    374,104.66/561,380.55 = 137,471.26/x
  3. Step 3: Cross multiply
    374,104.66x = 561,380.55 × 137,471.26
  4. Step 4: Simplify right side
    374,104.66x = 77,173,691,547.99
  5. Step 5: Solve for x
    x = 77,173,691,547.99/374,104.66
  6. Step 6: Final answer
    x = 206,289.04

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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.