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Finding the Fourth Proportional to 74,968.69, 112,452.99 and 19,564.69

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Solution

The fourth proportional to 74,968.69, 112,452.99 and 19,564.69 is: 29,347.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,968.69 : 112,452.99 = 19,564.69 : x
  2. Step 2: Convert to fraction form
    74,968.69/112,452.99 = 19,564.69/x
  3. Step 3: Cross multiply
    74,968.69x = 112,452.99 × 19,564.69
  4. Step 4: Simplify right side
    74,968.69x = 2,200,107,888.92
  5. Step 5: Solve for x
    x = 2,200,107,888.92/74,968.69
  6. Step 6: Final answer
    x = 29,347.02

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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.