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Finding the Fourth Proportional to 265,794.45, 398,693.10 and 66,114.83

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Solution

The fourth proportional to 265,794.45, 398,693.10 and 66,114.83 is: 99,172.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,794.45 : 398,693.10 = 66,114.83 : x
  2. Step 2: Convert to fraction form
    265,794.45/398,693.10 = 66,114.83/x
  3. Step 3: Cross multiply
    265,794.45x = 398,693.10 × 66,114.83
  4. Step 4: Simplify right side
    265,794.45x = 26,359,527,773.34
  5. Step 5: Solve for x
    x = 26,359,527,773.34/265,794.45
  6. Step 6: Final answer
    x = 99,172.61

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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.