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Finding the Fourth Proportional to 261,065.76, 360,201.28 and 150,656.43

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Solution

The fourth proportional to 261,065.76, 360,201.28 and 150,656.43 is: 207,865.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,065.76 : 360,201.28 = 150,656.43 : x
  2. Step 2: Convert to fraction form
    261,065.76/360,201.28 = 150,656.43/x
  3. Step 3: Cross multiply
    261,065.76x = 360,201.28 × 150,656.43
  4. Step 4: Simplify right side
    261,065.76x = 54,266,638,926.23
  5. Step 5: Solve for x
    x = 54,266,638,926.23/261,065.76
  6. Step 6: Final answer
    x = 207,865.78

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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.