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Finding the Fourth Proportional to 65,010.90, 97,300.35 and 47,190.90

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Solution

The fourth proportional to 65,010.90, 97,300.35 and 47,190.90 is: 70,629.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,010.90 : 97,300.35 = 47,190.90 : x
  2. Step 2: Convert to fraction form
    65,010.90/97,300.35 = 47,190.90/x
  3. Step 3: Cross multiply
    65,010.90x = 97,300.35 × 47,190.90
  4. Step 4: Simplify right side
    65,010.90x = 4,591,691,086.82
  5. Step 5: Solve for x
    x = 4,591,691,086.82/65,010.90
  6. Step 6: Final answer
    x = 70,629.56

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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.