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Finding the Fourth Proportional to 107,958.69, 148,979.88 and 60,211.08

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Solution

The fourth proportional to 107,958.69, 148,979.88 and 60,211.08 is: 83,089.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,958.69 : 148,979.88 = 60,211.08 : x
  2. Step 2: Convert to fraction form
    107,958.69/148,979.88 = 60,211.08/x
  3. Step 3: Cross multiply
    107,958.69x = 148,979.88 × 60,211.08
  4. Step 4: Simplify right side
    107,958.69x = 8,970,239,473.07
  5. Step 5: Solve for x
    x = 8,970,239,473.07/107,958.69
  6. Step 6: Final answer
    x = 83,089.55

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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.