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Finding the Fourth Proportional to 92,552.28, 138,810.79 and 45,119.76

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Solution

The fourth proportional to 92,552.28, 138,810.79 and 45,119.76 is: 67,671.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,552.28 : 138,810.79 = 45,119.76 : x
  2. Step 2: Convert to fraction form
    92,552.28/138,810.79 = 45,119.76/x
  3. Step 3: Cross multiply
    92,552.28x = 138,810.79 × 45,119.76
  4. Step 4: Simplify right side
    92,552.28x = 6,263,109,530.21
  5. Step 5: Solve for x
    x = 6,263,109,530.21/92,552.28
  6. Step 6: Final answer
    x = 67,671.05

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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.