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Finding the Fourth Proportional to 57,088.88, 78,857.95 and 43,824.05

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Solution

The fourth proportional to 57,088.88, 78,857.95 and 43,824.05 is: 60,534.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,088.88 : 78,857.95 = 43,824.05 : x
  2. Step 2: Convert to fraction form
    57,088.88/78,857.95 = 43,824.05/x
  3. Step 3: Cross multiply
    57,088.88x = 78,857.95 × 43,824.05
  4. Step 4: Simplify right side
    57,088.88x = 3,455,874,743.70
  5. Step 5: Solve for x
    x = 3,455,874,743.70/57,088.88
  6. Step 6: Final answer
    x = 60,534.99

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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.