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Finding the Fourth Proportional to 374,178.59, 561,011.77 and 134,287.17

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Solution

The fourth proportional to 374,178.59, 561,011.77 and 134,287.17 is: 201,338.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,178.59 : 561,011.77 = 134,287.17 : x
  2. Step 2: Convert to fraction form
    374,178.59/561,011.77 = 134,287.17/x
  3. Step 3: Cross multiply
    374,178.59x = 561,011.77 × 134,287.17
  4. Step 4: Simplify right side
    374,178.59x = 75,336,680,994.06
  5. Step 5: Solve for x
    x = 75,336,680,994.06/374,178.59
  6. Step 6: Final answer
    x = 201,338.83

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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.