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Finding the Fourth Proportional to 248,169.60, 372,254.40 and 220,613.40

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Solution

The fourth proportional to 248,169.60, 372,254.40 and 220,613.40 is: 330,920.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,169.60 : 372,254.40 = 220,613.40 : x
  2. Step 2: Convert to fraction form
    248,169.60/372,254.40 = 220,613.40/x
  3. Step 3: Cross multiply
    248,169.60x = 372,254.40 × 220,613.40
  4. Step 4: Simplify right side
    248,169.60x = 82,124,308,848.96
  5. Step 5: Solve for x
    x = 82,124,308,848.96/248,169.60
  6. Step 6: Final answer
    x = 330,920.10

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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.