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Finding the Fourth Proportional to 250,991.52, 376,376.76 and 117,909.60

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Solution

The fourth proportional to 250,991.52, 376,376.76 and 117,909.60 is: 176,812.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,991.52 : 376,376.76 = 117,909.60 : x
  2. Step 2: Convert to fraction form
    250,991.52/376,376.76 = 117,909.60/x
  3. Step 3: Cross multiply
    250,991.52x = 376,376.76 × 117,909.60
  4. Step 4: Simplify right side
    250,991.52x = 44,378,433,220.90
  5. Step 5: Solve for x
    x = 44,378,433,220.90/250,991.52
  6. Step 6: Final answer
    x = 176,812.48

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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.