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Finding the Fourth Proportional to 105,882.78, 146,117.80 and 60,560.70

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Solution

The fourth proportional to 105,882.78, 146,117.80 and 60,560.70 is: 83,573.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,882.78 : 146,117.80 = 60,560.70 : x
  2. Step 2: Convert to fraction form
    105,882.78/146,117.80 = 60,560.70/x
  3. Step 3: Cross multiply
    105,882.78x = 146,117.80 × 60,560.70
  4. Step 4: Simplify right side
    105,882.78x = 8,848,996,250.46
  5. Step 5: Solve for x
    x = 8,848,996,250.46/105,882.78
  6. Step 6: Final answer
    x = 83,573.52

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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.