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Finding the Fourth Proportional to 261,046.71, 391,745.04 and 167,618.07

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Solution

The fourth proportional to 261,046.71, 391,745.04 and 167,618.07 is: 251,539.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,046.71 : 391,745.04 = 167,618.07 : x
  2. Step 2: Convert to fraction form
    261,046.71/391,745.04 = 167,618.07/x
  3. Step 3: Cross multiply
    261,046.71x = 391,745.04 × 167,618.07
  4. Step 4: Simplify right side
    261,046.71x = 65,663,547,536.87
  5. Step 5: Solve for x
    x = 65,663,547,536.87/261,046.71
  6. Step 6: Final answer
    x = 251,539.46

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1.5x scale

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.