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Finding the Fourth Proportional to 80,662.84, 111,028.26 and 59,114.68

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Solution

The fourth proportional to 80,662.84, 111,028.26 and 59,114.68 is: 81,368.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,662.84 : 111,028.26 = 59,114.68 : x
  2. Step 2: Convert to fraction form
    80,662.84/111,028.26 = 59,114.68/x
  3. Step 3: Cross multiply
    80,662.84x = 111,028.26 × 59,114.68
  4. Step 4: Simplify right side
    80,662.84x = 6,563,400,060.86
  5. Step 5: Solve for x
    x = 6,563,400,060.86/80,662.84
  6. Step 6: Final answer
    x = 81,368.32

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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.