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Finding the Fourth Proportional to 111,659.02, 154,115.94 and 63,939.76

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Solution

The fourth proportional to 111,659.02, 154,115.94 and 63,939.76 is: 88,252.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,659.02 : 154,115.94 = 63,939.76 : x
  2. Step 2: Convert to fraction form
    111,659.02/154,115.94 = 63,939.76/x
  3. Step 3: Cross multiply
    111,659.02x = 154,115.94 × 63,939.76
  4. Step 4: Simplify right side
    111,659.02x = 9,854,136,215.77
  5. Step 5: Solve for x
    x = 9,854,136,215.77/111,659.02
  6. Step 6: Final answer
    x = 88,252.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.