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Finding the Fourth Proportional to 61,133.92, 84,288.64 and 48,361.92

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Solution

The fourth proportional to 61,133.92, 84,288.64 and 48,361.92 is: 66,679.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,133.92 : 84,288.64 = 48,361.92 : x
  2. Step 2: Convert to fraction form
    61,133.92/84,288.64 = 48,361.92/x
  3. Step 3: Cross multiply
    61,133.92x = 84,288.64 × 48,361.92
  4. Step 4: Simplify right side
    61,133.92x = 4,076,360,464.59
  5. Step 5: Solve for x
    x = 4,076,360,464.59/61,133.92
  6. Step 6: Final answer
    x = 66,679.19

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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.