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Finding the Fourth Proportional to 458,363.10, 687,553.53 and 158,853.54

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Solution

The fourth proportional to 458,363.10, 687,553.53 and 158,853.54 is: 238,283.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,363.10 : 687,553.53 = 158,853.54 : x
  2. Step 2: Convert to fraction form
    458,363.10/687,553.53 = 158,853.54/x
  3. Step 3: Cross multiply
    458,363.10x = 687,553.53 × 158,853.54
  4. Step 4: Simplify right side
    458,363.10x = 109,220,312,180.00
  5. Step 5: Solve for x
    x = 109,220,312,180.00/458,363.10
  6. Step 6: Final answer
    x = 238,283.39

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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.