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Finding the Fourth Proportional to 105,042.48, 144,944.28 and 60,330.48

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Solution

The fourth proportional to 105,042.48, 144,944.28 and 60,330.48 is: 83,247.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,042.48 : 144,944.28 = 60,330.48 : x
  2. Step 2: Convert to fraction form
    105,042.48/144,944.28 = 60,330.48/x
  3. Step 3: Cross multiply
    105,042.48x = 144,944.28 × 60,330.48
  4. Step 4: Simplify right side
    105,042.48x = 8,744,557,985.65
  5. Step 5: Solve for x
    x = 8,744,557,985.65/105,042.48
  6. Step 6: Final answer
    x = 83,247.82

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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.