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Finding the Fourth Proportional to 359,046.43, 538,583.31 and 134,383.21

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Solution

The fourth proportional to 359,046.43, 538,583.31 and 134,383.21 is: 201,579.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,046.43 : 538,583.31 = 134,383.21 : x
  2. Step 2: Convert to fraction form
    359,046.43/538,583.31 = 134,383.21/x
  3. Step 3: Cross multiply
    359,046.43x = 538,583.31 × 134,383.21
  4. Step 4: Simplify right side
    359,046.43x = 72,376,552,703.77
  5. Step 5: Solve for x
    x = 72,376,552,703.77/359,046.43
  6. Step 6: Final answer
    x = 201,579.93

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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.