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Finding the Fourth Proportional to 145,028.14, 217,500.09 and 60,786.01

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Solution

The fourth proportional to 145,028.14, 217,500.09 and 60,786.01 is: 91,161.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,028.14 : 217,500.09 = 60,786.01 : x
  2. Step 2: Convert to fraction form
    145,028.14/217,500.09 = 60,786.01/x
  3. Step 3: Cross multiply
    145,028.14x = 217,500.09 × 60,786.01
  4. Step 4: Simplify right side
    145,028.14x = 13,220,962,645.74
  5. Step 5: Solve for x
    x = 13,220,962,645.74/145,028.14
  6. Step 6: Final answer
    x = 91,161.36

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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.