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Finding the Fourth Proportional to 260,881.69, 391,497.90 and 92,401.42

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Solution

The fourth proportional to 260,881.69, 391,497.90 and 92,401.42 is: 138,664.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,881.69 : 391,497.90 = 92,401.42 : x
  2. Step 2: Convert to fraction form
    260,881.69/391,497.90 = 92,401.42/x
  3. Step 3: Cross multiply
    260,881.69x = 391,497.90 × 92,401.42
  4. Step 4: Simplify right side
    260,881.69x = 36,174,961,887.02
  5. Step 5: Solve for x
    x = 36,174,961,887.02/260,881.69
  6. Step 6: Final answer
    x = 138,664.24

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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.