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Finding the Fourth Proportional to 352,265, 528,286.58 and 115,552.68

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Solution

The fourth proportional to 352,265, 528,286.58 and 115,552.68 is: 173,292.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,265 : 528,286.58 = 115,552.68 : x
  2. Step 2: Convert to fraction form
    352,265/528,286.58 = 115,552.68/x
  3. Step 3: Cross multiply
    352,265x = 528,286.58 × 115,552.68
  4. Step 4: Simplify right side
    352,265x = 61,044,930,127.03
  5. Step 5: Solve for x
    x = 61,044,930,127.03/352,265
  6. Step 6: Final answer
    x = 173,292.64

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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.