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Finding the Fourth Proportional to 144,028.40, 215,664.60 and 101,679.80

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Solution

The fourth proportional to 144,028.40, 215,664.60 and 101,679.80 is: 152,252.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,028.40 : 215,664.60 = 101,679.80 : x
  2. Step 2: Convert to fraction form
    144,028.40/215,664.60 = 101,679.80/x
  3. Step 3: Cross multiply
    144,028.40x = 215,664.60 × 101,679.80
  4. Step 4: Simplify right side
    144,028.40x = 21,928,733,395.08
  5. Step 5: Solve for x
    x = 21,928,733,395.08/144,028.40
  6. Step 6: Final answer
    x = 152,252.84

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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.