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Finding the Fourth Proportional to 68,760.57, 103,298.73 and 48,543.82

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Solution

The fourth proportional to 68,760.57, 103,298.73 and 48,543.82 is: 72,927.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,760.57 : 103,298.73 = 48,543.82 : x
  2. Step 2: Convert to fraction form
    68,760.57/103,298.73 = 48,543.82/x
  3. Step 3: Cross multiply
    68,760.57x = 103,298.73 × 48,543.82
  4. Step 4: Simplify right side
    68,760.57x = 5,014,514,955.35
  5. Step 5: Solve for x
    x = 5,014,514,955.35/68,760.57
  6. Step 6: Final answer
    x = 72,927.19

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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.