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Finding the Fourth Proportional to 483,346.80, 725,016.60 and 146,386.80

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Solution

The fourth proportional to 483,346.80, 725,016.60 and 146,386.80 is: 219,579.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,346.80 : 725,016.60 = 146,386.80 : x
  2. Step 2: Convert to fraction form
    483,346.80/725,016.60 = 146,386.80/x
  3. Step 3: Cross multiply
    483,346.80x = 725,016.60 × 146,386.80
  4. Step 4: Simplify right side
    483,346.80x = 106,132,860,020.88
  5. Step 5: Solve for x
    x = 106,132,860,020.88/483,346.80
  6. Step 6: Final answer
    x = 219,579.11

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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.