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Finding the Fourth Proportional to 59,742.36, 89,668.88 and 30,180.88

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Solution

The fourth proportional to 59,742.36, 89,668.88 and 30,180.88 is: 45,299.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,742.36 : 89,668.88 = 30,180.88 : x
  2. Step 2: Convert to fraction form
    59,742.36/89,668.88 = 30,180.88/x
  3. Step 3: Cross multiply
    59,742.36x = 89,668.88 × 30,180.88
  4. Step 4: Simplify right side
    59,742.36x = 2,706,285,707.01
  5. Step 5: Solve for x
    x = 2,706,285,707.01/59,742.36
  6. Step 6: Final answer
    x = 45,299.28

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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.