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Finding the Fourth Proportional to 79,551.25, 109,779.84 and 59,224.20

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Solution

The fourth proportional to 79,551.25, 109,779.84 and 59,224.20 is: 81,728.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,551.25 : 109,779.84 = 59,224.20 : x
  2. Step 2: Convert to fraction form
    79,551.25/109,779.84 = 59,224.20/x
  3. Step 3: Cross multiply
    79,551.25x = 109,779.84 × 59,224.20
  4. Step 4: Simplify right side
    79,551.25x = 6,501,622,904.01
  5. Step 5: Solve for x
    x = 6,501,622,904.01/79,551.25
  6. Step 6: Final answer
    x = 81,728.73

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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.