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Finding the Fourth Proportional to 103,333.95, 154,856.56 and 55,846.66

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Solution

The fourth proportional to 103,333.95, 154,856.56 and 55,846.66 is: 83,691.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,333.95 : 154,856.56 = 55,846.66 : x
  2. Step 2: Convert to fraction form
    103,333.95/154,856.56 = 55,846.66/x
  3. Step 3: Cross multiply
    103,333.95x = 154,856.56 × 55,846.66
  4. Step 4: Simplify right side
    103,333.95x = 8,648,221,655.09
  5. Step 5: Solve for x
    x = 8,648,221,655.09/103,333.95
  6. Step 6: Final answer
    x = 83,691.97

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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.