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Finding the Fourth Proportional to 339,712.34, 509,570.40 and 103,055.27

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Solution

The fourth proportional to 339,712.34, 509,570.40 and 103,055.27 is: 154,583.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,712.34 : 509,570.40 = 103,055.27 : x
  2. Step 2: Convert to fraction form
    339,712.34/509,570.40 = 103,055.27/x
  3. Step 3: Cross multiply
    339,712.34x = 509,570.40 × 103,055.27
  4. Step 4: Simplify right side
    339,712.34x = 52,513,915,156.01
  5. Step 5: Solve for x
    x = 52,513,915,156.01/339,712.34
  6. Step 6: Final answer
    x = 154,583.48

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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.