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Finding the Fourth Proportional to 265,574.31, 398,360.38 and 107,801.43

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Solution

The fourth proportional to 265,574.31, 398,360.38 and 107,801.43 is: 161,701.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,574.31 : 398,360.38 = 107,801.43 : x
  2. Step 2: Convert to fraction form
    265,574.31/398,360.38 = 107,801.43/x
  3. Step 3: Cross multiply
    265,574.31x = 398,360.38 × 107,801.43
  4. Step 4: Simplify right side
    265,574.31x = 42,943,818,619.34
  5. Step 5: Solve for x
    x = 42,943,818,619.34/265,574.31
  6. Step 6: Final answer
    x = 161,701.70

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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.