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Finding the Fourth Proportional to 141,995.80, 212,812.80 and 75,467.80

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Solution

The fourth proportional to 141,995.80, 212,812.80 and 75,467.80 is: 113,105.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,995.80 : 212,812.80 = 75,467.80 : x
  2. Step 2: Convert to fraction form
    141,995.80/212,812.80 = 75,467.80/x
  3. Step 3: Cross multiply
    141,995.80x = 212,812.80 × 75,467.80
  4. Step 4: Simplify right side
    141,995.80x = 16,060,513,827.84
  5. Step 5: Solve for x
    x = 16,060,513,827.84/141,995.80
  6. Step 6: Final answer
    x = 113,105.56

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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.