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Finding the Fourth Proportional to 53,877.76, 80,917.12 and 44,037.92

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Solution

The fourth proportional to 53,877.76, 80,917.12 and 44,037.92 is: 66,139.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,877.76 : 80,917.12 = 44,037.92 : x
  2. Step 2: Convert to fraction form
    53,877.76/80,917.12 = 44,037.92/x
  3. Step 3: Cross multiply
    53,877.76x = 80,917.12 × 44,037.92
  4. Step 4: Simplify right side
    53,877.76x = 3,563,421,657.19
  5. Step 5: Solve for x
    x = 3,563,421,657.19/53,877.76
  6. Step 6: Final answer
    x = 66,139.01

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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.