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Finding the Fourth Proportional to 302,243.51, 453,348.86 and 91,865.05

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Solution

The fourth proportional to 302,243.51, 453,348.86 and 91,865.05 is: 137,792.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,243.51 : 453,348.86 = 91,865.05 : x
  2. Step 2: Convert to fraction form
    302,243.51/453,348.86 = 91,865.05/x
  3. Step 3: Cross multiply
    302,243.51x = 453,348.86 × 91,865.05
  4. Step 4: Simplify right side
    302,243.51x = 41,646,914,098.65
  5. Step 5: Solve for x
    x = 41,646,914,098.65/302,243.51
  6. Step 6: Final answer
    x = 137,792.58

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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.