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Finding the Fourth Proportional to 126,558.75, 174,600.84 and 72,814.84

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Solution

The fourth proportional to 126,558.75, 174,600.84 and 72,814.84 is: 100,455.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,558.75 : 174,600.84 = 72,814.84 : x
  2. Step 2: Convert to fraction form
    126,558.75/174,600.84 = 72,814.84/x
  3. Step 3: Cross multiply
    126,558.75x = 174,600.84 × 72,814.84
  4. Step 4: Simplify right side
    126,558.75x = 12,713,532,228.47
  5. Step 5: Solve for x
    x = 12,713,532,228.47/126,558.75
  6. Step 6: Final answer
    x = 100,455.58

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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.