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Finding the Fourth Proportional to 261,360.01, 391,934.48 and 101,351.69

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Solution

The fourth proportional to 261,360.01, 391,934.48 and 101,351.69 is: 151,986.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,360.01 : 391,934.48 = 101,351.69 : x
  2. Step 2: Convert to fraction form
    261,360.01/391,934.48 = 101,351.69/x
  3. Step 3: Cross multiply
    261,360.01x = 391,934.48 × 101,351.69
  4. Step 4: Simplify right side
    261,360.01x = 39,723,221,410.51
  5. Step 5: Solve for x
    x = 39,723,221,410.51/261,360.01
  6. Step 6: Final answer
    x = 151,986.61

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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.