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Finding the Fourth Proportional to 188,290.67, 259,840.13 and 102,248.90

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Solution

The fourth proportional to 188,290.67, 259,840.13 and 102,248.90 is: 141,102.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,290.67 : 259,840.13 = 102,248.90 : x
  2. Step 2: Convert to fraction form
    188,290.67/259,840.13 = 102,248.90/x
  3. Step 3: Cross multiply
    188,290.67x = 259,840.13 × 102,248.90
  4. Step 4: Simplify right side
    188,290.67x = 26,568,365,657.91
  5. Step 5: Solve for x
    x = 26,568,365,657.91/188,290.67
  6. Step 6: Final answer
    x = 141,102.93

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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.