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Finding the Fourth Proportional to 141,886.69, 212,830.04 and 134,791.70

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Solution

The fourth proportional to 141,886.69, 212,830.04 and 134,791.70 is: 202,187.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,886.69 : 212,830.04 = 134,791.70 : x
  2. Step 2: Convert to fraction form
    141,886.69/212,830.04 = 134,791.70/x
  3. Step 3: Cross multiply
    141,886.69x = 212,830.04 × 134,791.70
  4. Step 4: Simplify right side
    141,886.69x = 28,687,721,563.62
  5. Step 5: Solve for x
    x = 28,687,721,563.62/141,886.69
  6. Step 6: Final answer
    x = 202,187.55

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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.