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Finding the Fourth Proportional to 100,079.70, 150,479.64 and 92,277.66

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Solution

The fourth proportional to 100,079.70, 150,479.64 and 92,277.66 is: 138,748.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,079.70 : 150,479.64 = 92,277.66 : x
  2. Step 2: Convert to fraction form
    100,079.70/150,479.64 = 92,277.66/x
  3. Step 3: Cross multiply
    100,079.70x = 150,479.64 × 92,277.66
  4. Step 4: Simplify right side
    100,079.70x = 13,885,909,056.84
  5. Step 5: Solve for x
    x = 13,885,909,056.84/100,079.70
  6. Step 6: Final answer
    x = 138,748.51

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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.