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Finding the Fourth Proportional to 141,952.30, 212,928.45 and 135,040.30

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Solution

The fourth proportional to 141,952.30, 212,928.45 and 135,040.30 is: 202,560.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,952.30 : 212,928.45 = 135,040.30 : x
  2. Step 2: Convert to fraction form
    141,952.30/212,928.45 = 135,040.30/x
  3. Step 3: Cross multiply
    141,952.30x = 212,928.45 × 135,040.30
  4. Step 4: Simplify right side
    141,952.30x = 28,753,921,766.54
  5. Step 5: Solve for x
    x = 28,753,921,766.54/141,952.30
  6. Step 6: Final answer
    x = 202,560.45

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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.