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Finding the Fourth Proportional to 239,750.64, 359,786.28 and 99,509.28

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Solution

The fourth proportional to 239,750.64, 359,786.28 and 99,509.28 is: 149,330.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,750.64 : 359,786.28 = 99,509.28 : x
  2. Step 2: Convert to fraction form
    239,750.64/359,786.28 = 99,509.28/x
  3. Step 3: Cross multiply
    239,750.64x = 359,786.28 × 99,509.28
  4. Step 4: Simplify right side
    239,750.64x = 35,802,073,676.68
  5. Step 5: Solve for x
    x = 35,802,073,676.68/239,750.64
  6. Step 6: Final answer
    x = 149,330.46

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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.