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Finding the Fourth Proportional to 188,502.90, 260,134.86 and 103,625.43

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Solution

The fourth proportional to 188,502.90, 260,134.86 and 103,625.43 is: 143,003.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,502.90 : 260,134.86 = 103,625.43 : x
  2. Step 2: Convert to fraction form
    188,502.90/260,134.86 = 103,625.43/x
  3. Step 3: Cross multiply
    188,502.90x = 260,134.86 × 103,625.43
  4. Step 4: Simplify right side
    188,502.90x = 26,956,586,725.49
  5. Step 5: Solve for x
    x = 26,956,586,725.49/188,502.90
  6. Step 6: Final answer
    x = 143,003.57

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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.