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Finding the Fourth Proportional to 318,141.84, 439,036.74 and 182,177.94

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Solution

The fourth proportional to 318,141.84, 439,036.74 and 182,177.94 is: 251,406.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,141.84 : 439,036.74 = 182,177.94 : x
  2. Step 2: Convert to fraction form
    318,141.84/439,036.74 = 182,177.94/x
  3. Step 3: Cross multiply
    318,141.84x = 439,036.74 × 182,177.94
  4. Step 4: Simplify right side
    318,141.84x = 79,982,808,877.52
  5. Step 5: Solve for x
    x = 79,982,808,877.52/318,141.84
  6. Step 6: Final answer
    x = 251,406.13

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.