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Finding the Fourth Proportional to 117,435, 176,170.84 and 38,531.28

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Solution

The fourth proportional to 117,435, 176,170.84 and 38,531.28 is: 57,802.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,435 : 176,170.84 = 38,531.28 : x
  2. Step 2: Convert to fraction form
    117,435/176,170.84 = 38,531.28/x
  3. Step 3: Cross multiply
    117,435x = 176,170.84 × 38,531.28
  4. Step 4: Simplify right side
    117,435x = 6,788,087,963.88
  5. Step 5: Solve for x
    x = 6,788,087,963.88/117,435
  6. Step 6: Final answer
    x = 57,802.94

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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.