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Finding the Fourth Proportional to 168,412.17, 252,597.78 and 105,237.93

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Solution

The fourth proportional to 168,412.17, 252,597.78 and 105,237.93 is: 157,844.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,412.17 : 252,597.78 = 105,237.93 : x
  2. Step 2: Convert to fraction form
    168,412.17/252,597.78 = 105,237.93/x
  3. Step 3: Cross multiply
    168,412.17x = 252,597.78 × 105,237.93
  4. Step 4: Simplify right side
    168,412.17x = 26,582,867,489.80
  5. Step 5: Solve for x
    x = 26,582,867,489.80/168,412.17
  6. Step 6: Final answer
    x = 157,844.10

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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.