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Finding the Fourth Proportional to 70,440.66, 97,218.06 and 43,591.81

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Solution

The fourth proportional to 70,440.66, 97,218.06 and 43,591.81 is: 60,162.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,440.66 : 97,218.06 = 43,591.81 : x
  2. Step 2: Convert to fraction form
    70,440.66/97,218.06 = 43,591.81/x
  3. Step 3: Cross multiply
    70,440.66x = 97,218.06 × 43,591.81
  4. Step 4: Simplify right side
    70,440.66x = 4,237,911,200.09
  5. Step 5: Solve for x
    x = 4,237,911,200.09/70,440.66
  6. Step 6: Final answer
    x = 60,162.86

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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.