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Finding the Fourth Proportional to 217,860.04, 326,800.78 and 60,085

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Solution

The fourth proportional to 217,860.04, 326,800.78 and 60,085 is: 90,130.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,860.04 : 326,800.78 = 60,085 : x
  2. Step 2: Convert to fraction form
    217,860.04/326,800.78 = 60,085/x
  3. Step 3: Cross multiply
    217,860.04x = 326,800.78 × 60,085
  4. Step 4: Simplify right side
    217,860.04x = 19,635,824,866.30
  5. Step 5: Solve for x
    x = 19,635,824,866.30/217,860.04
  6. Step 6: Final answer
    x = 90,130.46

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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.