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Finding the Fourth Proportional to 151,762.50, 209,432.37 and 84,694.50

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Solution

The fourth proportional to 151,762.50, 209,432.37 and 84,694.50 is: 116,878.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,762.50 : 209,432.37 = 84,694.50 : x
  2. Step 2: Convert to fraction form
    151,762.50/209,432.37 = 84,694.50/x
  3. Step 3: Cross multiply
    151,762.50x = 209,432.37 × 84,694.50
  4. Step 4: Simplify right side
    151,762.50x = 17,737,769,860.97
  5. Step 5: Solve for x
    x = 17,737,769,860.97/151,762.50
  6. Step 6: Final answer
    x = 116,878.48

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.