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Finding the Fourth Proportional to 168,005.80, 252,036.15 and 49,689.10

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Solution

The fourth proportional to 168,005.80, 252,036.15 and 49,689.10 is: 74,541.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,005.80 : 252,036.15 = 49,689.10 : x
  2. Step 2: Convert to fraction form
    168,005.80/252,036.15 = 49,689.10/x
  3. Step 3: Cross multiply
    168,005.80x = 252,036.15 × 49,689.10
  4. Step 4: Simplify right side
    168,005.80x = 12,523,449,460.97
  5. Step 5: Solve for x
    x = 12,523,449,460.97/168,005.80
  6. Step 6: Final answer
    x = 74,541.77

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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.