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Finding the Fourth Proportional to 79,565.94, 109,803.84 and 43,758.72

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Solution

The fourth proportional to 79,565.94, 109,803.84 and 43,758.72 is: 60,388.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,565.94 : 109,803.84 = 43,758.72 : x
  2. Step 2: Convert to fraction form
    79,565.94/109,803.84 = 43,758.72/x
  3. Step 3: Cross multiply
    79,565.94x = 109,803.84 × 43,758.72
  4. Step 4: Simplify right side
    79,565.94x = 4,804,875,489.48
  5. Step 5: Solve for x
    x = 4,804,875,489.48/79,565.94
  6. Step 6: Final answer
    x = 60,388.60

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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.