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Finding the Fourth Proportional to 363,608.80, 545,413.20 and 97,410.40

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Solution

The fourth proportional to 363,608.80, 545,413.20 and 97,410.40 is: 146,115.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,608.80 : 545,413.20 = 97,410.40 : x
  2. Step 2: Convert to fraction form
    363,608.80/545,413.20 = 97,410.40/x
  3. Step 3: Cross multiply
    363,608.80x = 545,413.20 × 97,410.40
  4. Step 4: Simplify right side
    363,608.80x = 53,128,917,977.28
  5. Step 5: Solve for x
    x = 53,128,917,977.28/363,608.80
  6. Step 6: Final answer
    x = 146,115.60

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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.