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Finding the Fourth Proportional to 70,370.55, 97,107.76 and 38,533.30

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Solution

The fourth proportional to 70,370.55, 97,107.76 and 38,533.30 is: 53,173.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,370.55 : 97,107.76 = 38,533.30 : x
  2. Step 2: Convert to fraction form
    70,370.55/97,107.76 = 38,533.30/x
  3. Step 3: Cross multiply
    70,370.55x = 97,107.76 × 38,533.30
  4. Step 4: Simplify right side
    70,370.55x = 3,741,882,448.41
  5. Step 5: Solve for x
    x = 3,741,882,448.41/70,370.55
  6. Step 6: Final answer
    x = 53,173.98

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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.