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Finding the Fourth Proportional to 265,898.19, 398,786.46 and 76,357.05

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Solution

The fourth proportional to 265,898.19, 398,786.46 and 76,357.05 is: 114,518.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,898.19 : 398,786.46 = 76,357.05 : x
  2. Step 2: Convert to fraction form
    265,898.19/398,786.46 = 76,357.05/x
  3. Step 3: Cross multiply
    265,898.19x = 398,786.46 × 76,357.05
  4. Step 4: Simplify right side
    265,898.19x = 30,450,159,892.78
  5. Step 5: Solve for x
    x = 30,450,159,892.78/265,898.19
  6. Step 6: Final answer
    x = 114,518.11

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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.