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Finding the Fourth Proportional to 188,899.29, 260,670.96 and 108,322.92

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Solution

The fourth proportional to 188,899.29, 260,670.96 and 108,322.92 is: 149,479.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,899.29 : 260,670.96 = 108,322.92 : x
  2. Step 2: Convert to fraction form
    188,899.29/260,670.96 = 108,322.92/x
  3. Step 3: Cross multiply
    188,899.29x = 260,670.96 × 108,322.92
  4. Step 4: Simplify right side
    188,899.29x = 28,236,639,546.40
  5. Step 5: Solve for x
    x = 28,236,639,546.40/188,899.29
  6. Step 6: Final answer
    x = 149,479.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.