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Finding the Fourth Proportional to 117,006.90, 175,510.35 and 115,257.30

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Solution

The fourth proportional to 117,006.90, 175,510.35 and 115,257.30 is: 172,885.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,006.90 : 175,510.35 = 115,257.30 : x
  2. Step 2: Convert to fraction form
    117,006.90/175,510.35 = 115,257.30/x
  3. Step 3: Cross multiply
    117,006.90x = 175,510.35 × 115,257.30
  4. Step 4: Simplify right side
    117,006.90x = 20,228,849,063.06
  5. Step 5: Solve for x
    x = 20,228,849,063.06/117,006.90
  6. Step 6: Final answer
    x = 172,885.95

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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.