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Finding the Fourth Proportional to 141,493.65, 212,052.87 and 103,877.79

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Solution

The fourth proportional to 141,493.65, 212,052.87 and 103,877.79 is: 155,678.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,493.65 : 212,052.87 = 103,877.79 : x
  2. Step 2: Convert to fraction form
    141,493.65/212,052.87 = 103,877.79/x
  3. Step 3: Cross multiply
    141,493.65x = 212,052.87 × 103,877.79
  4. Step 4: Simplify right side
    141,493.65x = 22,027,583,498.76
  5. Step 5: Solve for x
    x = 22,027,583,498.76/141,493.65
  6. Step 6: Final answer
    x = 155,678.95

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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.