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Finding the Fourth Proportional to 141,648.52, 212,227.64 and 99,448.60

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Solution

The fourth proportional to 141,648.52, 212,227.64 and 99,448.60 is: 149,000.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,648.52 : 212,227.64 = 99,448.60 : x
  2. Step 2: Convert to fraction form
    141,648.52/212,227.64 = 99,448.60/x
  3. Step 3: Cross multiply
    141,648.52x = 212,227.64 × 99,448.60
  4. Step 4: Simplify right side
    141,648.52x = 21,105,741,679.30
  5. Step 5: Solve for x
    x = 21,105,741,679.30/141,648.52
  6. Step 6: Final answer
    x = 149,000.79

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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.