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Finding the Fourth Proportional to 117,505.76, 176,240.41 and 38,619.45

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Solution

The fourth proportional to 117,505.76, 176,240.41 and 38,619.45 is: 57,923.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,505.76 : 176,240.41 = 38,619.45 : x
  2. Step 2: Convert to fraction form
    117,505.76/176,240.41 = 38,619.45/x
  3. Step 3: Cross multiply
    117,505.76x = 176,240.41 × 38,619.45
  4. Step 4: Simplify right side
    117,505.76x = 6,806,307,605.43
  5. Step 5: Solve for x
    x = 6,806,307,605.43/117,505.76
  6. Step 6: Final answer
    x = 57,923.19

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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.