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Finding the Fourth Proportional to 265,937.14, 398,788.98 and 99,608.50

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Solution

The fourth proportional to 265,937.14, 398,788.98 and 99,608.50 is: 149,369.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,937.14 : 398,788.98 = 99,608.50 : x
  2. Step 2: Convert to fraction form
    265,937.14/398,788.98 = 99,608.50/x
  3. Step 3: Cross multiply
    265,937.14x = 398,788.98 × 99,608.50
  4. Step 4: Simplify right side
    265,937.14x = 39,722,772,114.33
  5. Step 5: Solve for x
    x = 39,722,772,114.33/265,937.14
  6. Step 6: Final answer
    x = 149,369.03

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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.