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Finding the Fourth Proportional to 104,907.72, 157,154.22 and 49,542.60

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Solution

The fourth proportional to 104,907.72, 157,154.22 and 49,542.60 is: 74,215.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,907.72 : 157,154.22 = 49,542.60 : x
  2. Step 2: Convert to fraction form
    104,907.72/157,154.22 = 49,542.60/x
  3. Step 3: Cross multiply
    104,907.72x = 157,154.22 × 49,542.60
  4. Step 4: Simplify right side
    104,907.72x = 7,785,828,659.77
  5. Step 5: Solve for x
    x = 7,785,828,659.77/104,907.72
  6. Step 6: Final answer
    x = 74,215.97

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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.