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Finding the Fourth Proportional to 69,041.74, 103,410.78 and 57,059.74

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Solution

The fourth proportional to 69,041.74, 103,410.78 and 57,059.74 is: 85,464.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,041.74 : 103,410.78 = 57,059.74 : x
  2. Step 2: Convert to fraction form
    69,041.74/103,410.78 = 57,059.74/x
  3. Step 3: Cross multiply
    69,041.74x = 103,410.78 × 57,059.74
  4. Step 4: Simplify right side
    69,041.74x = 5,900,592,220.00
  5. Step 5: Solve for x
    x = 5,900,592,220.00/69,041.74
  6. Step 6: Final answer
    x = 85,464.13

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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.