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Finding the Fourth Proportional to 356,983.40, 535,615.13 and 157,163.59

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Solution

The fourth proportional to 356,983.40, 535,615.13 and 157,163.59 is: 235,807.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,983.40 : 535,615.13 = 157,163.59 : x
  2. Step 2: Convert to fraction form
    356,983.40/535,615.13 = 157,163.59/x
  3. Step 3: Cross multiply
    356,983.40x = 535,615.13 × 157,163.59
  4. Step 4: Simplify right side
    356,983.40x = 84,179,197,751.54
  5. Step 5: Solve for x
    x = 84,179,197,751.54/356,983.40
  6. Step 6: Final answer
    x = 235,807.04

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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.