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Finding the Fourth Proportional to 143,886.26, 215,849.07 and 49,091.00

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Solution

The fourth proportional to 143,886.26, 215,849.07 and 49,091.00 is: 73,643.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,886.26 : 215,849.07 = 49,091.00 : x
  2. Step 2: Convert to fraction form
    143,886.26/215,849.07 = 49,091.00/x
  3. Step 3: Cross multiply
    143,886.26x = 215,849.07 × 49,091.00
  4. Step 4: Simplify right side
    143,886.26x = 10,596,245,616.12
  5. Step 5: Solve for x
    x = 10,596,245,616.12/143,886.26
  6. Step 6: Final answer
    x = 73,643.21

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.