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Finding the Fourth Proportional to 332,218.40, 497,987.40 and 163,479.20

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Solution

The fourth proportional to 332,218.40, 497,987.40 and 163,479.20 is: 245,051.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    332,218.40 : 497,987.40 = 163,479.20 : x
  2. Step 2: Convert to fraction form
    332,218.40/497,987.40 = 163,479.20/x
  3. Step 3: Cross multiply
    332,218.40x = 497,987.40 × 163,479.20
  4. Step 4: Simplify right side
    332,218.40x = 81,410,581,762.08
  5. Step 5: Solve for x
    x = 81,410,581,762.08/332,218.40
  6. Step 6: Final answer
    x = 245,051.39

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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.