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Finding the Fourth Proportional to 144,783.65, 199,733.85 and 91,098.26

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Solution

The fourth proportional to 144,783.65, 199,733.85 and 91,098.26 is: 125,673.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,783.65 : 199,733.85 = 91,098.26 : x
  2. Step 2: Convert to fraction form
    144,783.65/199,733.85 = 91,098.26/x
  3. Step 3: Cross multiply
    144,783.65x = 199,733.85 × 91,098.26
  4. Step 4: Simplify right side
    144,783.65x = 18,195,406,198.10
  5. Step 5: Solve for x
    x = 18,195,406,198.10/144,783.65
  6. Step 6: Final answer
    x = 125,673.07

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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.