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Finding the Fourth Proportional to 144,317.48, 199,158.44 and 80,655.28

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Solution

The fourth proportional to 144,317.48, 199,158.44 and 80,655.28 is: 111,304.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,317.48 : 199,158.44 = 80,655.28 : x
  2. Step 2: Convert to fraction form
    144,317.48/199,158.44 = 80,655.28/x
  3. Step 3: Cross multiply
    144,317.48x = 199,158.44 × 80,655.28
  4. Step 4: Simplify right side
    144,317.48x = 16,063,179,742.56
  5. Step 5: Solve for x
    x = 16,063,179,742.56/144,317.48
  6. Step 6: Final answer
    x = 111,304.46

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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.