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Finding the Fourth Proportional to 452,727.36, 679,113.72 and 172,266.48

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Solution

The fourth proportional to 452,727.36, 679,113.72 and 172,266.48 is: 258,408.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,727.36 : 679,113.72 = 172,266.48 : x
  2. Step 2: Convert to fraction form
    452,727.36/679,113.72 = 172,266.48/x
  3. Step 3: Cross multiply
    452,727.36x = 679,113.72 × 172,266.48
  4. Step 4: Simplify right side
    452,727.36x = 116,988,530,064.11
  5. Step 5: Solve for x
    x = 116,988,530,064.11/452,727.36
  6. Step 6: Final answer
    x = 258,408.35

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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.