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Finding the Fourth Proportional to 75,413.96, 104,074.08 and 45,204.20

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Solution

The fourth proportional to 75,413.96, 104,074.08 and 45,204.20 is: 62,383.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,413.96 : 104,074.08 = 45,204.20 : x
  2. Step 2: Convert to fraction form
    75,413.96/104,074.08 = 45,204.20/x
  3. Step 3: Cross multiply
    75,413.96x = 104,074.08 × 45,204.20
  4. Step 4: Simplify right side
    75,413.96x = 4,704,585,527.14
  5. Step 5: Solve for x
    x = 4,704,585,527.14/75,413.96
  6. Step 6: Final answer
    x = 62,383.48

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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.