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Finding the Fourth Proportional to 92,469.45, 138,719.73 and 29,307.18

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Solution

The fourth proportional to 92,469.45, 138,719.73 and 29,307.18 is: 43,965.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,469.45 : 138,719.73 = 29,307.18 : x
  2. Step 2: Convert to fraction form
    92,469.45/138,719.73 = 29,307.18/x
  3. Step 3: Cross multiply
    92,469.45x = 138,719.73 × 29,307.18
  4. Step 4: Simplify right side
    92,469.45x = 4,065,484,096.66
  5. Step 5: Solve for x
    x = 4,065,484,096.66/92,469.45
  6. Step 6: Final answer
    x = 43,965.70

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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.