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Finding the Fourth Proportional to 141,571.16, 212,488.02 and 71,499.64

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Solution

The fourth proportional to 141,571.16, 212,488.02 and 71,499.64 is: 107,315.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,571.16 : 212,488.02 = 71,499.64 : x
  2. Step 2: Convert to fraction form
    141,571.16/212,488.02 = 71,499.64/x
  3. Step 3: Cross multiply
    141,571.16x = 212,488.02 × 71,499.64
  4. Step 4: Simplify right side
    141,571.16x = 15,192,816,934.31
  5. Step 5: Solve for x
    x = 15,192,816,934.31/141,571.16
  6. Step 6: Final answer
    x = 107,315.76

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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.