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Finding the Fourth Proportional to 426,952.49, 640,354.55 and 160,715.07

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Solution

The fourth proportional to 426,952.49, 640,354.55 and 160,715.07 is: 241,044.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,952.49 : 640,354.55 = 160,715.07 : x
  2. Step 2: Convert to fraction form
    426,952.49/640,354.55 = 160,715.07/x
  3. Step 3: Cross multiply
    426,952.49x = 640,354.55 × 160,715.07
  4. Step 4: Simplify right side
    426,952.49x = 102,914,625,524.49
  5. Step 5: Solve for x
    x = 102,914,625,524.49/426,952.49
  6. Step 6: Final answer
    x = 241,044.68

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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.