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Finding the Fourth Proportional to 144,235.84, 199,049.52 and 80,580.64

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Solution

The fourth proportional to 144,235.84, 199,049.52 and 80,580.64 is: 111,203.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,235.84 : 199,049.52 = 80,580.64 : x
  2. Step 2: Convert to fraction form
    144,235.84/199,049.52 = 80,580.64/x
  3. Step 3: Cross multiply
    144,235.84x = 199,049.52 × 80,580.64
  4. Step 4: Simplify right side
    144,235.84x = 16,039,537,713.29
  5. Step 5: Solve for x
    x = 16,039,537,713.29/144,235.84
  6. Step 6: Final answer
    x = 111,203.55

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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.