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Finding the Fourth Proportional to 117,185.90, 175,711.14 and 103,174.04

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Solution

The fourth proportional to 117,185.90, 175,711.14 and 103,174.04 is: 154,701.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,185.90 : 175,711.14 = 103,174.04 : x
  2. Step 2: Convert to fraction form
    117,185.90/175,711.14 = 103,174.04/x
  3. Step 3: Cross multiply
    117,185.90x = 175,711.14 × 103,174.04
  4. Step 4: Simplify right side
    117,185.90x = 18,128,828,626.08
  5. Step 5: Solve for x
    x = 18,128,828,626.08/117,185.90
  6. Step 6: Final answer
    x = 154,701.46

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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.