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Finding the Fourth Proportional to 141,325.70, 211,988.55 and 137,229.70

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Solution

The fourth proportional to 141,325.70, 211,988.55 and 137,229.70 is: 205,844.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,325.70 : 211,988.55 = 137,229.70 : x
  2. Step 2: Convert to fraction form
    141,325.70/211,988.55 = 137,229.70/x
  3. Step 3: Cross multiply
    141,325.70x = 211,988.55 × 137,229.70
  4. Step 4: Simplify right side
    141,325.70x = 29,091,125,119.94
  5. Step 5: Solve for x
    x = 29,091,125,119.94/141,325.70
  6. Step 6: Final answer
    x = 205,844.55

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1.5x scale

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.