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Finding the Fourth Proportional to 452,876.84, 679,413.28 and 137,357.56

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Solution

The fourth proportional to 452,876.84, 679,413.28 and 137,357.56 is: 206,066.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,876.84 : 679,413.28 = 137,357.56 : x
  2. Step 2: Convert to fraction form
    452,876.84/679,413.28 = 137,357.56/x
  3. Step 3: Cross multiply
    452,876.84x = 679,413.28 × 137,357.56
  4. Step 4: Simplify right side
    452,876.84x = 93,322,550,372.40
  5. Step 5: Solve for x
    x = 93,322,550,372.40/452,876.84
  6. Step 6: Final answer
    x = 206,066.07

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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.