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Finding the Fourth Proportional to 113,608.80, 170,460 and 47,062.32

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Solution

The fourth proportional to 113,608.80, 170,460 and 47,062.32 is: 70,612.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,608.80 : 170,460 = 47,062.32 : x
  2. Step 2: Convert to fraction form
    113,608.80/170,460 = 47,062.32/x
  3. Step 3: Cross multiply
    113,608.80x = 170,460 × 47,062.32
  4. Step 4: Simplify right side
    113,608.80x = 8,022,243,067.20
  5. Step 5: Solve for x
    x = 8,022,243,067.20/113,608.80
  6. Step 6: Final answer
    x = 70,612.87

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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.