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Finding the Fourth Proportional to 308,154.44, 425,301.94 and 187,333.64

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Solution

The fourth proportional to 308,154.44, 425,301.94 and 187,333.64 is: 258,550.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,154.44 : 425,301.94 = 187,333.64 : x
  2. Step 2: Convert to fraction form
    308,154.44/425,301.94 = 187,333.64/x
  3. Step 3: Cross multiply
    308,154.44x = 425,301.94 × 187,333.64
  4. Step 4: Simplify right side
    308,154.44x = 79,673,360,519.26
  5. Step 5: Solve for x
    x = 79,673,360,519.26/308,154.44
  6. Step 6: Final answer
    x = 258,550.10

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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.