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Finding the Fourth Proportional to 126,366.49, 174,400.77 and 72,653.77

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Solution

The fourth proportional to 126,366.49, 174,400.77 and 72,653.77 is: 100,270.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,366.49 : 174,400.77 = 72,653.77 : x
  2. Step 2: Convert to fraction form
    126,366.49/174,400.77 = 72,653.77/x
  3. Step 3: Cross multiply
    126,366.49x = 174,400.77 × 72,653.77
  4. Step 4: Simplify right side
    126,366.49x = 12,670,873,431.40
  5. Step 5: Solve for x
    x = 12,670,873,431.40/126,366.49
  6. Step 6: Final answer
    x = 100,270.83

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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.