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Finding the Fourth Proportional to 125,572.32, 188,169.84 and 113,718.24

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Solution

The fourth proportional to 125,572.32, 188,169.84 and 113,718.24 is: 170,406.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,572.32 : 188,169.84 = 113,718.24 : x
  2. Step 2: Convert to fraction form
    125,572.32/188,169.84 = 113,718.24/x
  3. Step 3: Cross multiply
    125,572.32x = 188,169.84 × 113,718.24
  4. Step 4: Simplify right side
    125,572.32x = 21,398,343,025.88
  5. Step 5: Solve for x
    x = 21,398,343,025.88/125,572.32
  6. Step 6: Final answer
    x = 170,406.53

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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.