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Finding the Fourth Proportional to 71,300.78, 98,352.03 and 45,798.56

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Solution

The fourth proportional to 71,300.78, 98,352.03 and 45,798.56 is: 63,174.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,300.78 : 98,352.03 = 45,798.56 : x
  2. Step 2: Convert to fraction form
    71,300.78/98,352.03 = 45,798.56/x
  3. Step 3: Cross multiply
    71,300.78x = 98,352.03 × 45,798.56
  4. Step 4: Simplify right side
    71,300.78x = 4,504,381,347.08
  5. Step 5: Solve for x
    x = 4,504,381,347.08/71,300.78
  6. Step 6: Final answer
    x = 63,174.36

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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.