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Finding the Fourth Proportional to 261,141.10, 360,531.99 and 170,648.51

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Solution

The fourth proportional to 261,141.10, 360,531.99 and 170,648.51 is: 235,597.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,141.10 : 360,531.99 = 170,648.51 : x
  2. Step 2: Convert to fraction form
    261,141.10/360,531.99 = 170,648.51/x
  3. Step 3: Cross multiply
    261,141.10x = 360,531.99 × 170,648.51
  4. Step 4: Simplify right side
    261,141.10x = 61,524,245,098.18
  5. Step 5: Solve for x
    x = 61,524,245,098.18/261,141.10
  6. Step 6: Final answer
    x = 235,597.71

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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.