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Finding the Fourth Proportional to 144,482.11, 199,400.31 and 83,230.43

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Solution

The fourth proportional to 144,482.11, 199,400.31 and 83,230.43 is: 114,866.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,482.11 : 199,400.31 = 83,230.43 : x
  2. Step 2: Convert to fraction form
    144,482.11/199,400.31 = 83,230.43/x
  3. Step 3: Cross multiply
    144,482.11x = 199,400.31 × 83,230.43
  4. Step 4: Simplify right side
    144,482.11x = 16,596,172,546.43
  5. Step 5: Solve for x
    x = 16,596,172,546.43/144,482.11
  6. Step 6: Final answer
    x = 114,866.63

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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.