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Finding the Fourth Proportional to 126,775.53, 174,944.84 and 69,413.81

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Solution

The fourth proportional to 126,775.53, 174,944.84 and 69,413.81 is: 95,788.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,775.53 : 174,944.84 = 69,413.81 : x
  2. Step 2: Convert to fraction form
    126,775.53/174,944.84 = 69,413.81/x
  3. Step 3: Cross multiply
    126,775.53x = 174,944.84 × 69,413.81
  4. Step 4: Simplify right side
    126,775.53x = 12,143,586,662.45
  5. Step 5: Solve for x
    x = 12,143,586,662.45/126,775.53
  6. Step 6: Final answer
    x = 95,788.10

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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.