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Finding the Fourth Proportional to 73,877.76, 110,345.22 and 66,846.96

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Solution

The fourth proportional to 73,877.76, 110,345.22 and 66,846.96 is: 99,843.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,877.76 : 110,345.22 = 66,846.96 : x
  2. Step 2: Convert to fraction form
    73,877.76/110,345.22 = 66,846.96/x
  3. Step 3: Cross multiply
    73,877.76x = 110,345.22 × 66,846.96
  4. Step 4: Simplify right side
    73,877.76x = 7,376,242,507.53
  5. Step 5: Solve for x
    x = 7,376,242,507.53/73,877.76
  6. Step 6: Final answer
    x = 99,843.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.