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Finding the Fourth Proportional to 70,581.87, 97,401.76 and 38,750.54

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Solution

The fourth proportional to 70,581.87, 97,401.76 and 38,750.54 is: 53,475.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,581.87 : 97,401.76 = 38,750.54 : x
  2. Step 2: Convert to fraction form
    70,581.87/97,401.76 = 38,750.54/x
  3. Step 3: Cross multiply
    70,581.87x = 97,401.76 × 38,750.54
  4. Step 4: Simplify right side
    70,581.87x = 3,774,370,796.95
  5. Step 5: Solve for x
    x = 3,774,370,796.95/70,581.87
  6. Step 6: Final answer
    x = 53,475.08

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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.