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Finding the Fourth Proportional to 140,335.61, 210,653.26 and 60,413.13

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Solution

The fourth proportional to 140,335.61, 210,653.26 and 60,413.13 is: 90,684.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,335.61 : 210,653.26 = 60,413.13 : x
  2. Step 2: Convert to fraction form
    140,335.61/210,653.26 = 60,413.13/x
  3. Step 3: Cross multiply
    140,335.61x = 210,653.26 × 60,413.13
  4. Step 4: Simplify right side
    140,335.61x = 12,726,222,630.27
  5. Step 5: Solve for x
    x = 12,726,222,630.27/140,335.61
  6. Step 6: Final answer
    x = 90,684.20

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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.