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Finding the Fourth Proportional to 188,008.29, 259,487.15 and 111,569.81

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Solution

The fourth proportional to 188,008.29, 259,487.15 and 111,569.81 is: 153,987.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,008.29 : 259,487.15 = 111,569.81 : x
  2. Step 2: Convert to fraction form
    188,008.29/259,487.15 = 111,569.81/x
  3. Step 3: Cross multiply
    188,008.29x = 259,487.15 × 111,569.81
  4. Step 4: Simplify right side
    188,008.29x = 28,950,930,167.66
  5. Step 5: Solve for x
    x = 28,950,930,167.66/188,008.29
  6. Step 6: Final answer
    x = 153,987.52

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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.