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Finding the Fourth Proportional to 79,093.97, 109,036.16 and 56,393.59

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Solution

The fourth proportional to 79,093.97, 109,036.16 and 56,393.59 is: 77,742.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,093.97 : 109,036.16 = 56,393.59 : x
  2. Step 2: Convert to fraction form
    79,093.97/109,036.16 = 56,393.59/x
  3. Step 3: Cross multiply
    79,093.97x = 109,036.16 × 56,393.59
  4. Step 4: Simplify right side
    79,093.97x = 6,148,939,957.03
  5. Step 5: Solve for x
    x = 6,148,939,957.03/79,093.97
  6. Step 6: Final answer
    x = 77,742.21

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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.