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Finding the Fourth Proportional to 188,600.93, 260,264.09 and 103,717.98

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Solution

The fourth proportional to 188,600.93, 260,264.09 and 103,717.98 is: 143,127.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,600.93 : 260,264.09 = 103,717.98 : x
  2. Step 2: Convert to fraction form
    188,600.93/260,264.09 = 103,717.98/x
  3. Step 3: Cross multiply
    188,600.93x = 260,264.09 × 103,717.98
  4. Step 4: Simplify right side
    188,600.93x = 26,994,065,162.75
  5. Step 5: Solve for x
    x = 26,994,065,162.75/188,600.93
  6. Step 6: Final answer
    x = 143,127.96

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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.