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Finding the Fourth Proportional to 276,714.28, 415,125.66 and 99,173.80

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Solution

The fourth proportional to 276,714.28, 415,125.66 and 99,173.80 is: 148,780.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,714.28 : 415,125.66 = 99,173.80 : x
  2. Step 2: Convert to fraction form
    276,714.28/415,125.66 = 99,173.80/x
  3. Step 3: Cross multiply
    276,714.28x = 415,125.66 × 99,173.80
  4. Step 4: Simplify right side
    276,714.28x = 41,169,589,179.71
  5. Step 5: Solve for x
    x = 41,169,589,179.71/276,714.28
  6. Step 6: Final answer
    x = 148,780.14

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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.