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Finding the Fourth Proportional to 122,251.88, 183,143.58 and 82,740.84

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Solution

The fourth proportional to 122,251.88, 183,143.58 and 82,740.84 is: 123,952.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,251.88 : 183,143.58 = 82,740.84 : x
  2. Step 2: Convert to fraction form
    122,251.88/183,143.58 = 82,740.84/x
  3. Step 3: Cross multiply
    122,251.88x = 183,143.58 × 82,740.84
  4. Step 4: Simplify right side
    122,251.88x = 15,153,453,649.81
  5. Step 5: Solve for x
    x = 15,153,453,649.81/122,251.88
  6. Step 6: Final answer
    x = 123,952.72

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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.