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Finding the Fourth Proportional to 125,008.82, 188,182.72 and 112,149.26

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Solution

The fourth proportional to 125,008.82, 188,182.72 and 112,149.26 is: 168,824.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,008.82 : 188,182.72 = 112,149.26 : x
  2. Step 2: Convert to fraction form
    125,008.82/188,182.72 = 112,149.26/x
  3. Step 3: Cross multiply
    125,008.82x = 188,182.72 × 112,149.26
  4. Step 4: Simplify right side
    125,008.82x = 21,104,552,792.79
  5. Step 5: Solve for x
    x = 21,104,552,792.79/125,008.82
  6. Step 6: Final answer
    x = 168,824.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.