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Finding the Fourth Proportional to 60,811.69, 91,053.50 and 39,699.44

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Solution

The fourth proportional to 60,811.69, 91,053.50 and 39,699.44 is: 59,442.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,811.69 : 91,053.50 = 39,699.44 : x
  2. Step 2: Convert to fraction form
    60,811.69/91,053.50 = 39,699.44/x
  3. Step 3: Cross multiply
    60,811.69x = 91,053.50 × 39,699.44
  4. Step 4: Simplify right side
    60,811.69x = 3,614,772,960.04
  5. Step 5: Solve for x
    x = 3,614,772,960.04/60,811.69
  6. Step 6: Final answer
    x = 59,442.07

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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.