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Finding the Fourth Proportional to 168,141.16, 251,766.78 and 101,492.20

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Solution

The fourth proportional to 168,141.16, 251,766.78 and 101,492.20 is: 151,969.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,141.16 : 251,766.78 = 101,492.20 : x
  2. Step 2: Convert to fraction form
    168,141.16/251,766.78 = 101,492.20/x
  3. Step 3: Cross multiply
    168,141.16x = 251,766.78 × 101,492.20
  4. Step 4: Simplify right side
    168,141.16x = 25,552,364,389.12
  5. Step 5: Solve for x
    x = 25,552,364,389.12/168,141.16
  6. Step 6: Final answer
    x = 151,969.72

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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.