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Finding the Fourth Proportional to 453,186.11, 679,797.61 and 186,921.25

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Solution

The fourth proportional to 453,186.11, 679,797.61 and 186,921.25 is: 280,389.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,186.11 : 679,797.61 = 186,921.25 : x
  2. Step 2: Convert to fraction form
    453,186.11/679,797.61 = 186,921.25/x
  3. Step 3: Cross multiply
    453,186.11x = 679,797.61 × 186,921.25
  4. Step 4: Simplify right side
    453,186.11x = 127,068,616,841.42
  5. Step 5: Solve for x
    x = 127,068,616,841.42/453,186.11
  6. Step 6: Final answer
    x = 280,389.48

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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.