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Finding the Fourth Proportional to 117,162.64, 175,742.60 and 47,040.72

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Solution

The fourth proportional to 117,162.64, 175,742.60 and 47,040.72 is: 70,560.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,162.64 : 175,742.60 = 47,040.72 : x
  2. Step 2: Convert to fraction form
    117,162.64/175,742.60 = 47,040.72/x
  3. Step 3: Cross multiply
    117,162.64x = 175,742.60 × 47,040.72
  4. Step 4: Simplify right side
    117,162.64x = 8,267,058,438.67
  5. Step 5: Solve for x
    x = 8,267,058,438.67/117,162.64
  6. Step 6: Final answer
    x = 70,560.53

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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.