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Finding the Fourth Proportional to 98,361, 135,689.58 and 62,046

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Solution

The fourth proportional to 98,361, 135,689.58 and 62,046 is: 85,592.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,361 : 135,689.58 = 62,046 : x
  2. Step 2: Convert to fraction form
    98,361/135,689.58 = 62,046/x
  3. Step 3: Cross multiply
    98,361x = 135,689.58 × 62,046
  4. Step 4: Simplify right side
    98,361x = 8,418,995,680.68
  5. Step 5: Solve for x
    x = 8,418,995,680.68/98,361
  6. Step 6: Final answer
    x = 85,592.82

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.