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Finding the Fourth Proportional to 205,699.10, 308,556.74 and 63,531.71

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Solution

The fourth proportional to 205,699.10, 308,556.74 and 63,531.71 is: 95,300.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,699.10 : 308,556.74 = 63,531.71 : x
  2. Step 2: Convert to fraction form
    205,699.10/308,556.74 = 63,531.71/x
  3. Step 3: Cross multiply
    205,699.10x = 308,556.74 × 63,531.71
  4. Step 4: Simplify right side
    205,699.10x = 19,603,137,097.36
  5. Step 5: Solve for x
    x = 19,603,137,097.36/205,699.10
  6. Step 6: Final answer
    x = 95,300.06

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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.