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Finding the Fourth Proportional to 69,074.64, 103,727.52 and 60,384.96

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Solution

The fourth proportional to 69,074.64, 103,727.52 and 60,384.96 is: 90,678.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,074.64 : 103,727.52 = 60,384.96 : x
  2. Step 2: Convert to fraction form
    69,074.64/103,727.52 = 60,384.96/x
  3. Step 3: Cross multiply
    69,074.64x = 103,727.52 × 60,384.96
  4. Step 4: Simplify right side
    69,074.64x = 6,263,582,146.10
  5. Step 5: Solve for x
    x = 6,263,582,146.10/69,074.64
  6. Step 6: Final answer
    x = 90,678.46

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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.