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Finding the Fourth Proportional to 262,470.30, 393,705.45 and 162,743.10

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Solution

The fourth proportional to 262,470.30, 393,705.45 and 162,743.10 is: 244,114.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,470.30 : 393,705.45 = 162,743.10 : x
  2. Step 2: Convert to fraction form
    262,470.30/393,705.45 = 162,743.10/x
  3. Step 3: Cross multiply
    262,470.30x = 393,705.45 × 162,743.10
  4. Step 4: Simplify right side
    262,470.30x = 64,072,845,419.90
  5. Step 5: Solve for x
    x = 64,072,845,419.90/262,470.30
  6. Step 6: Final answer
    x = 244,114.65

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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.