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Finding the Fourth Proportional to 131,998.74, 182,141.64 and 75,413.76

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Solution

The fourth proportional to 131,998.74, 182,141.64 and 75,413.76 is: 104,061.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,998.74 : 182,141.64 = 75,413.76 : x
  2. Step 2: Convert to fraction form
    131,998.74/182,141.64 = 75,413.76/x
  3. Step 3: Cross multiply
    131,998.74x = 182,141.64 × 75,413.76
  4. Step 4: Simplify right side
    131,998.74x = 13,735,985,924.97
  5. Step 5: Solve for x
    x = 13,735,985,924.97/131,998.74
  6. Step 6: Final answer
    x = 104,061.49

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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.