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Finding the Fourth Proportional to 452,896.72, 679,189.56 and 172,494.16

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Solution

The fourth proportional to 452,896.72, 679,189.56 and 172,494.16 is: 258,682.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,896.72 : 679,189.56 = 172,494.16 : x
  2. Step 2: Convert to fraction form
    452,896.72/679,189.56 = 172,494.16/x
  3. Step 3: Cross multiply
    452,896.72x = 679,189.56 × 172,494.16
  4. Step 4: Simplify right side
    452,896.72x = 117,156,232,632.97
  5. Step 5: Solve for x
    x = 117,156,232,632.97/452,896.72
  6. Step 6: Final answer
    x = 258,682.01

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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.