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Finding the Fourth Proportional to 192,551.60, 288,673.80 and 81,652.40

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Solution

The fourth proportional to 192,551.60, 288,673.80 and 81,652.40 is: 122,413.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,551.60 : 288,673.80 = 81,652.40 : x
  2. Step 2: Convert to fraction form
    192,551.60/288,673.80 = 81,652.40/x
  3. Step 3: Cross multiply
    192,551.60x = 288,673.80 × 81,652.40
  4. Step 4: Simplify right side
    192,551.60x = 23,570,908,587.12
  5. Step 5: Solve for x
    x = 23,570,908,587.12/192,551.60
  6. Step 6: Final answer
    x = 122,413.47

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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.