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Finding the Fourth Proportional to 333,083.78, 499,554.08 and 105,397.43

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Solution

The fourth proportional to 333,083.78, 499,554.08 and 105,397.43 is: 158,073.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    333,083.78 : 499,554.08 = 105,397.43 : x
  2. Step 2: Convert to fraction form
    333,083.78/499,554.08 = 105,397.43/x
  3. Step 3: Cross multiply
    333,083.78x = 499,554.08 × 105,397.43
  4. Step 4: Simplify right side
    333,083.78x = 52,651,715,651.03
  5. Step 5: Solve for x
    x = 52,651,715,651.03/333,083.78
  6. Step 6: Final answer
    x = 158,073.49

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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.