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Finding the Fourth Proportional to 378,077.79, 567,050.67 and 141,371.49

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Solution

The fourth proportional to 378,077.79, 567,050.67 and 141,371.49 is: 212,032.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,077.79 : 567,050.67 = 141,371.49 : x
  2. Step 2: Convert to fraction form
    378,077.79/567,050.67 = 141,371.49/x
  3. Step 3: Cross multiply
    378,077.79x = 567,050.67 × 141,371.49
  4. Step 4: Simplify right side
    378,077.79x = 80,164,798,123.40
  5. Step 5: Solve for x
    x = 80,164,798,123.40/378,077.79
  6. Step 6: Final answer
    x = 212,032.55

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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.