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Finding the Fourth Proportional to 176,679.39, 265,019.10 and 71,572.17

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Solution

The fourth proportional to 176,679.39, 265,019.10 and 71,572.17 is: 107,358.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,679.39 : 265,019.10 = 71,572.17 : x
  2. Step 2: Convert to fraction form
    176,679.39/265,019.10 = 71,572.17/x
  3. Step 3: Cross multiply
    176,679.39x = 265,019.10 × 71,572.17
  4. Step 4: Simplify right side
    176,679.39x = 18,967,992,078.45
  5. Step 5: Solve for x
    x = 18,967,992,078.45/176,679.39
  6. Step 6: Final answer
    x = 107,358.26

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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.