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Finding the Fourth Proportional to 356,754.88, 535,214.20 and 120,091.28

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Solution

The fourth proportional to 356,754.88, 535,214.20 and 120,091.28 is: 180,164.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,754.88 : 535,214.20 = 120,091.28 : x
  2. Step 2: Convert to fraction form
    356,754.88/535,214.20 = 120,091.28/x
  3. Step 3: Cross multiply
    356,754.88x = 535,214.20 × 120,091.28
  4. Step 4: Simplify right side
    356,754.88x = 64,274,558,352.18
  5. Step 5: Solve for x
    x = 64,274,558,352.18/356,754.88
  6. Step 6: Final answer
    x = 180,164.48

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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.