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Finding the Fourth Proportional to 70,309.56, 105,438.96 and 23,551.68

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Solution

The fourth proportional to 70,309.56, 105,438.96 and 23,551.68 is: 35,319.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,309.56 : 105,438.96 = 23,551.68 : x
  2. Step 2: Convert to fraction form
    70,309.56/105,438.96 = 23,551.68/x
  3. Step 3: Cross multiply
    70,309.56x = 105,438.96 × 23,551.68
  4. Step 4: Simplify right side
    70,309.56x = 2,483,264,645.45
  5. Step 5: Solve for x
    x = 2,483,264,645.45/70,309.56
  6. Step 6: Final answer
    x = 35,319.02

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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.