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Finding the Fourth Proportional to 261,418, 391,627.06 and 176,762.66

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Solution

The fourth proportional to 261,418, 391,627.06 and 176,762.66 is: 264,805.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,418 : 391,627.06 = 176,762.66 : x
  2. Step 2: Convert to fraction form
    261,418/391,627.06 = 176,762.66/x
  3. Step 3: Cross multiply
    261,418x = 391,627.06 × 176,762.66
  4. Step 4: Simplify right side
    261,418x = 69,225,040,853.58
  5. Step 5: Solve for x
    x = 69,225,040,853.58/261,418
  6. Step 6: Final answer
    x = 264,805.95

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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.