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Finding the Fourth Proportional to 238,673.45, 357,981.01 and 98,413.85

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Solution

The fourth proportional to 238,673.45, 357,981.01 and 98,413.85 is: 147,608.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,673.45 : 357,981.01 = 98,413.85 : x
  2. Step 2: Convert to fraction form
    238,673.45/357,981.01 = 98,413.85/x
  3. Step 3: Cross multiply
    238,673.45x = 357,981.01 × 98,413.85
  4. Step 4: Simplify right side
    238,673.45x = 35,230,287,385.05
  5. Step 5: Solve for x
    x = 35,230,287,385.05/238,673.45
  6. Step 6: Final answer
    x = 147,608.74

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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.