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Finding the Fourth Proportional to 110,413.80, 165,620.70 and 74,984.40

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Solution

The fourth proportional to 110,413.80, 165,620.70 and 74,984.40 is: 112,476.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,413.80 : 165,620.70 = 74,984.40 : x
  2. Step 2: Convert to fraction form
    110,413.80/165,620.70 = 74,984.40/x
  3. Step 3: Cross multiply
    110,413.80x = 165,620.70 × 74,984.40
  4. Step 4: Simplify right side
    110,413.80x = 12,418,968,817.08
  5. Step 5: Solve for x
    x = 12,418,968,817.08/110,413.80
  6. Step 6: Final answer
    x = 112,476.60

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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.