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Finding the Fourth Proportional to 123,040.55, 184,560.91 and 70,413.13

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Solution

The fourth proportional to 123,040.55, 184,560.91 and 70,413.13 is: 105,619.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,040.55 : 184,560.91 = 70,413.13 : x
  2. Step 2: Convert to fraction form
    123,040.55/184,560.91 = 70,413.13/x
  3. Step 3: Cross multiply
    123,040.55x = 184,560.91 × 70,413.13
  4. Step 4: Simplify right side
    123,040.55x = 12,995,511,348.75
  5. Step 5: Solve for x
    x = 12,995,511,348.75/123,040.55
  6. Step 6: Final answer
    x = 105,619.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.