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Finding the Fourth Proportional to 339,713.03, 509,570.76 and 103,057.76

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Solution

The fourth proportional to 339,713.03, 509,570.76 and 103,057.76 is: 154,587.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,713.03 : 509,570.76 = 103,057.76 : x
  2. Step 2: Convert to fraction form
    339,713.03/509,570.76 = 103,057.76/x
  3. Step 3: Cross multiply
    339,713.03x = 509,570.76 × 103,057.76
  4. Step 4: Simplify right side
    339,713.03x = 52,515,221,087.10
  5. Step 5: Solve for x
    x = 52,515,221,087.10/339,713.03
  6. Step 6: Final answer
    x = 154,587.01

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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.