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Finding the Fourth Proportional to 229,698.80, 344,548.20 and 71,975.60

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Solution

The fourth proportional to 229,698.80, 344,548.20 and 71,975.60 is: 107,963.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,698.80 : 344,548.20 = 71,975.60 : x
  2. Step 2: Convert to fraction form
    229,698.80/344,548.20 = 71,975.60/x
  3. Step 3: Cross multiply
    229,698.80x = 344,548.20 × 71,975.60
  4. Step 4: Simplify right side
    229,698.80x = 24,799,063,423.92
  5. Step 5: Solve for x
    x = 24,799,063,423.92/229,698.80
  6. Step 6: Final answer
    x = 107,963.40

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1.5x scale

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.