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Finding the Fourth Proportional to 113,374.80, 170,062.20 and 100,933.20

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Solution

The fourth proportional to 113,374.80, 170,062.20 and 100,933.20 is: 151,399.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,374.80 : 170,062.20 = 100,933.20 : x
  2. Step 2: Convert to fraction form
    113,374.80/170,062.20 = 100,933.20/x
  3. Step 3: Cross multiply
    113,374.80x = 170,062.20 × 100,933.20
  4. Step 4: Simplify right side
    113,374.80x = 17,164,922,045.04
  5. Step 5: Solve for x
    x = 17,164,922,045.04/113,374.80
  6. Step 6: Final answer
    x = 151,399.80

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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.