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Finding the Fourth Proportional to 78,833.40, 108,792.48 and 44,846.78

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Solution

The fourth proportional to 78,833.40, 108,792.48 and 44,846.78 is: 61,889.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,833.40 : 108,792.48 = 44,846.78 : x
  2. Step 2: Convert to fraction form
    78,833.40/108,792.48 = 44,846.78/x
  3. Step 3: Cross multiply
    78,833.40x = 108,792.48 × 44,846.78
  4. Step 4: Simplify right side
    78,833.40x = 4,878,992,416.21
  5. Step 5: Solve for x
    x = 4,878,992,416.21/78,833.40
  6. Step 6: Final answer
    x = 61,889.91

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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.