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Finding the Fourth Proportional to 141,515.10, 212,272.65 and 141,515.10

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Solution

The fourth proportional to 141,515.10, 212,272.65 and 141,515.10 is: 212,272.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,515.10 : 212,272.65 = 141,515.10 : x
  2. Step 2: Convert to fraction form
    141,515.10/212,272.65 = 141,515.10/x
  3. Step 3: Cross multiply
    141,515.10x = 212,272.65 × 141,515.10
  4. Step 4: Simplify right side
    141,515.10x = 30,039,785,292.02
  5. Step 5: Solve for x
    x = 30,039,785,292.02/141,515.10
  6. Step 6: Final answer
    x = 212,272.65

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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.