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Finding the Fourth Proportional to 112,892.60, 169,220.36 and 37,986.75

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Solution

The fourth proportional to 112,892.60, 169,220.36 and 37,986.75 is: 56,940.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,892.60 : 169,220.36 = 37,986.75 : x
  2. Step 2: Convert to fraction form
    112,892.60/169,220.36 = 37,986.75/x
  3. Step 3: Cross multiply
    112,892.60x = 169,220.36 × 37,986.75
  4. Step 4: Simplify right side
    112,892.60x = 6,428,131,320.30
  5. Step 5: Solve for x
    x = 6,428,131,320.30/112,892.60
  6. Step 6: Final answer
    x = 56,940.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.