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Finding the Fourth Proportional to 78,700.12, 108,593.84 and 44,238.03

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Solution

The fourth proportional to 78,700.12, 108,593.84 and 44,238.03 is: 61,041.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,700.12 : 108,593.84 = 44,238.03 : x
  2. Step 2: Convert to fraction form
    78,700.12/108,593.84 = 44,238.03/x
  3. Step 3: Cross multiply
    78,700.12x = 108,593.84 × 44,238.03
  4. Step 4: Simplify right side
    78,700.12x = 4,803,977,551.74
  5. Step 5: Solve for x
    x = 4,803,977,551.74/78,700.12
  6. Step 6: Final answer
    x = 61,041.55

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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.