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Finding the Fourth Proportional to 121,057.44, 181,756.32 and 61,935.52

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Solution

The fourth proportional to 121,057.44, 181,756.32 and 61,935.52 is: 92,990.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,057.44 : 181,756.32 = 61,935.52 : x
  2. Step 2: Convert to fraction form
    121,057.44/181,756.32 = 61,935.52/x
  3. Step 3: Cross multiply
    121,057.44x = 181,756.32 × 61,935.52
  4. Step 4: Simplify right side
    121,057.44x = 11,257,172,192.49
  5. Step 5: Solve for x
    x = 11,257,172,192.49/121,057.44
  6. Step 6: Final answer
    x = 92,990.34

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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.