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Finding the Fourth Proportional to 79,571.52, 109,808.64 and 43,762.08

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Solution

The fourth proportional to 79,571.52, 109,808.64 and 43,762.08 is: 60,391.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,571.52 : 109,808.64 = 43,762.08 : x
  2. Step 2: Convert to fraction form
    79,571.52/109,808.64 = 43,762.08/x
  3. Step 3: Cross multiply
    79,571.52x = 109,808.64 × 43,762.08
  4. Step 4: Simplify right side
    79,571.52x = 4,805,454,488.37
  5. Step 5: Solve for x
    x = 4,805,454,488.37/79,571.52
  6. Step 6: Final answer
    x = 60,391.64

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1.5x scale

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.