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Finding the Fourth Proportional to 339,755.77, 509,636.72 and 103,098.45

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Solution

The fourth proportional to 339,755.77, 509,636.72 and 103,098.45 is: 154,648.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,755.77 : 509,636.72 = 103,098.45 : x
  2. Step 2: Convert to fraction form
    339,755.77/509,636.72 = 103,098.45/x
  3. Step 3: Cross multiply
    339,755.77x = 509,636.72 × 103,098.45
  4. Step 4: Simplify right side
    339,755.77x = 52,542,753,908.89
  5. Step 5: Solve for x
    x = 52,542,753,908.89/339,755.77
  6. Step 6: Final answer
    x = 154,648.60

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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.