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Finding the Fourth Proportional to 117,344.39, 176,031.34 and 57,374.87

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Solution

The fourth proportional to 117,344.39, 176,031.34 and 57,374.87 is: 86,069.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,344.39 : 176,031.34 = 57,374.87 : x
  2. Step 2: Convert to fraction form
    117,344.39/176,031.34 = 57,374.87/x
  3. Step 3: Cross multiply
    117,344.39x = 176,031.34 × 57,374.87
  4. Step 4: Simplify right side
    117,344.39x = 10,099,774,224.83
  5. Step 5: Solve for x
    x = 10,099,774,224.83/117,344.39
  6. Step 6: Final answer
    x = 86,069.51

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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.