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Finding the Fourth Proportional to 239,886.81, 359,902.13 and 71,413.02

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Solution

The fourth proportional to 239,886.81, 359,902.13 and 71,413.02 is: 107,140.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,886.81 : 359,902.13 = 71,413.02 : x
  2. Step 2: Convert to fraction form
    239,886.81/359,902.13 = 71,413.02/x
  3. Step 3: Cross multiply
    239,886.81x = 359,902.13 × 71,413.02
  4. Step 4: Simplify right side
    239,886.81x = 25,701,697,650.67
  5. Step 5: Solve for x
    x = 25,701,697,650.67/239,886.81
  6. Step 6: Final answer
    x = 107,140.94

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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.