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Finding the Fourth Proportional to 73,896.90, 101,985.85 and 42,060.66

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Solution

The fourth proportional to 73,896.90, 101,985.85 and 42,060.66 is: 58,048.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,896.90 : 101,985.85 = 42,060.66 : x
  2. Step 2: Convert to fraction form
    73,896.90/101,985.85 = 42,060.66/x
  3. Step 3: Cross multiply
    73,896.90x = 101,985.85 × 42,060.66
  4. Step 4: Simplify right side
    73,896.90x = 4,289,592,161.66
  5. Step 5: Solve for x
    x = 4,289,592,161.66/73,896.90
  6. Step 6: Final answer
    x = 58,048.34

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.