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Finding the Fourth Proportional to 69,184.72, 103,775.64 and 46,942.48

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Solution

The fourth proportional to 69,184.72, 103,775.64 and 46,942.48 is: 70,412.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,184.72 : 103,775.64 = 46,942.48 : x
  2. Step 2: Convert to fraction form
    69,184.72/103,775.64 = 46,942.48/x
  3. Step 3: Cross multiply
    69,184.72x = 103,775.64 × 46,942.48
  4. Step 4: Simplify right side
    69,184.72x = 4,871,485,905.19
  5. Step 5: Solve for x
    x = 4,871,485,905.19/69,184.72
  6. Step 6: Final answer
    x = 70,412.74

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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.