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Finding the Fourth Proportional to 110,049.15, 151,871.51 and 61,653.17

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Solution

The fourth proportional to 110,049.15, 151,871.51 and 61,653.17 is: 85,083.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,049.15 : 151,871.51 = 61,653.17 : x
  2. Step 2: Convert to fraction form
    110,049.15/151,871.51 = 61,653.17/x
  3. Step 3: Cross multiply
    110,049.15x = 151,871.51 × 61,653.17
  4. Step 4: Simplify right side
    110,049.15x = 9,363,359,715.92
  5. Step 5: Solve for x
    x = 9,363,359,715.92/110,049.15
  6. Step 6: Final answer
    x = 85,083.44

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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.