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Finding the Fourth Proportional to 112,571.80, 168,836.10 and 33,688.60

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Solution

The fourth proportional to 112,571.80, 168,836.10 and 33,688.60 is: 50,526.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,571.80 : 168,836.10 = 33,688.60 : x
  2. Step 2: Convert to fraction form
    112,571.80/168,836.10 = 33,688.60/x
  3. Step 3: Cross multiply
    112,571.80x = 168,836.10 × 33,688.60
  4. Step 4: Simplify right side
    112,571.80x = 5,687,851,838.46
  5. Step 5: Solve for x
    x = 5,687,851,838.46/112,571.80
  6. Step 6: Final answer
    x = 50,526.44

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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.