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Finding the Fourth Proportional to 374,036.52, 561,885.16 and 231,986.78

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Solution

The fourth proportional to 374,036.52, 561,885.16 and 231,986.78 is: 348,495.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,036.52 : 561,885.16 = 231,986.78 : x
  2. Step 2: Convert to fraction form
    374,036.52/561,885.16 = 231,986.78/x
  3. Step 3: Cross multiply
    374,036.52x = 561,885.16 × 231,986.78
  4. Step 4: Simplify right side
    374,036.52x = 130,349,928,998.19
  5. Step 5: Solve for x
    x = 130,349,928,998.19/374,036.52
  6. Step 6: Final answer
    x = 348,495.19

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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.