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Finding the Fourth Proportional to 78,833.12, 108,789.90 and 44,840.84

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Solution

The fourth proportional to 78,833.12, 108,789.90 and 44,840.84 is: 61,880.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,833.12 : 108,789.90 = 44,840.84 : x
  2. Step 2: Convert to fraction form
    78,833.12/108,789.90 = 44,840.84/x
  3. Step 3: Cross multiply
    78,833.12x = 108,789.90 × 44,840.84
  4. Step 4: Simplify right side
    78,833.12x = 4,878,230,499.52
  5. Step 5: Solve for x
    x = 4,878,230,499.52/78,833.12
  6. Step 6: Final answer
    x = 61,880.47

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1.5x scale

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.