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Finding the Fourth Proportional to 173,413.60, 260,120.40 and 162,008.80

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Solution

The fourth proportional to 173,413.60, 260,120.40 and 162,008.80 is: 243,013.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,413.60 : 260,120.40 = 162,008.80 : x
  2. Step 2: Convert to fraction form
    173,413.60/260,120.40 = 162,008.80/x
  3. Step 3: Cross multiply
    173,413.60x = 260,120.40 × 162,008.80
  4. Step 4: Simplify right side
    173,413.60x = 42,141,793,859.52
  5. Step 5: Solve for x
    x = 42,141,793,859.52/173,413.60
  6. Step 6: Final answer
    x = 243,013.20

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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.