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Finding the Fourth Proportional to 96,854.48, 133,611.72 and 61,027.28

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Solution

The fourth proportional to 96,854.48, 133,611.72 and 61,027.28 is: 84,187.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,854.48 : 133,611.72 = 61,027.28 : x
  2. Step 2: Convert to fraction form
    96,854.48/133,611.72 = 61,027.28/x
  3. Step 3: Cross multiply
    96,854.48x = 133,611.72 × 61,027.28
  4. Step 4: Simplify right side
    96,854.48x = 8,153,959,847.72
  5. Step 5: Solve for x
    x = 8,153,959,847.72/96,854.48
  6. Step 6: Final answer
    x = 84,187.74

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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.