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Finding the Fourth Proportional to 71,313.97, 98,353.49 and 45,824.48

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Solution

The fourth proportional to 71,313.97, 98,353.49 and 45,824.48 is: 63,199.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,313.97 : 98,353.49 = 45,824.48 : x
  2. Step 2: Convert to fraction form
    71,313.97/98,353.49 = 45,824.48/x
  3. Step 3: Cross multiply
    71,313.97x = 98,353.49 × 45,824.48
  4. Step 4: Simplify right side
    71,313.97x = 4,506,997,994.37
  5. Step 5: Solve for x
    x = 4,506,997,994.37/71,313.97
  6. Step 6: Final answer
    x = 63,199.37

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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.