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Finding the Fourth Proportional to 113,338.80, 170,002.80 and 38,451.60

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Solution

The fourth proportional to 113,338.80, 170,002.80 and 38,451.60 is: 57,675.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,338.80 : 170,002.80 = 38,451.60 : x
  2. Step 2: Convert to fraction form
    113,338.80/170,002.80 = 38,451.60/x
  3. Step 3: Cross multiply
    113,338.80x = 170,002.80 × 38,451.60
  4. Step 4: Simplify right side
    113,338.80x = 6,536,879,664.48
  5. Step 5: Solve for x
    x = 6,536,879,664.48/113,338.80
  6. Step 6: Final answer
    x = 57,675.57

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1.5x scale

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.