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Finding the Fourth Proportional to 144,763.55, 199,757.57 and 84,321.55

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Solution

The fourth proportional to 144,763.55, 199,757.57 and 84,321.55 is: 116,354.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,763.55 : 199,757.57 = 84,321.55 : x
  2. Step 2: Convert to fraction form
    144,763.55/199,757.57 = 84,321.55/x
  3. Step 3: Cross multiply
    144,763.55x = 199,757.57 × 84,321.55
  4. Step 4: Simplify right side
    144,763.55x = 16,843,867,926.63
  5. Step 5: Solve for x
    x = 16,843,867,926.63/144,763.55
  6. Step 6: Final answer
    x = 116,354.34

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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.