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Finding the Fourth Proportional to 97,147.20, 145,785.60 and 44,529.60

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Solution

The fourth proportional to 97,147.20, 145,785.60 and 44,529.60 is: 66,824.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,147.20 : 145,785.60 = 44,529.60 : x
  2. Step 2: Convert to fraction form
    97,147.20/145,785.60 = 44,529.60/x
  3. Step 3: Cross multiply
    97,147.20x = 145,785.60 × 44,529.60
  4. Step 4: Simplify right side
    97,147.20x = 6,491,774,453.76
  5. Step 5: Solve for x
    x = 6,491,774,453.76/97,147.20
  6. Step 6: Final answer
    x = 66,824.10

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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.