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Finding the Fourth Proportional to 117,065.65, 175,580.66 and 38,179.75

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Solution

The fourth proportional to 117,065.65, 175,580.66 and 38,179.75 is: 57,263.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,065.65 : 175,580.66 = 38,179.75 : x
  2. Step 2: Convert to fraction form
    117,065.65/175,580.66 = 38,179.75/x
  3. Step 3: Cross multiply
    117,065.65x = 175,580.66 × 38,179.75
  4. Step 4: Simplify right side
    117,065.65x = 6,703,625,512.74
  5. Step 5: Solve for x
    x = 6,703,625,512.74/117,065.65
  6. Step 6: Final answer
    x = 57,263.81

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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.