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Finding the Fourth Proportional to 188,641.85, 260,314.16 and 108,050.90

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Solution

The fourth proportional to 188,641.85, 260,314.16 and 108,050.90 is: 149,103.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,641.85 : 260,314.16 = 108,050.90 : x
  2. Step 2: Convert to fraction form
    188,641.85/260,314.16 = 108,050.90/x
  3. Step 3: Cross multiply
    188,641.85x = 260,314.16 × 108,050.90
  4. Step 4: Simplify right side
    188,641.85x = 28,127,177,428.92
  5. Step 5: Solve for x
    x = 28,127,177,428.92/188,641.85
  6. Step 6: Final answer
    x = 149,103.60

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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.