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Finding the Fourth Proportional to 168,281.66, 252,206.51 and 73,486.15

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Solution

The fourth proportional to 168,281.66, 252,206.51 and 73,486.15 is: 110,134.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,281.66 : 252,206.51 = 73,486.15 : x
  2. Step 2: Convert to fraction form
    168,281.66/252,206.51 = 73,486.15/x
  3. Step 3: Cross multiply
    168,281.66x = 252,206.51 × 73,486.15
  4. Step 4: Simplify right side
    168,281.66x = 18,533,684,978.04
  5. Step 5: Solve for x
    x = 18,533,684,978.04/168,281.66
  6. Step 6: Final answer
    x = 110,134.91

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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.