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Finding the Fourth Proportional to 217,497.80, 326,153.45 and 117,630.88

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Solution

The fourth proportional to 217,497.80, 326,153.45 and 117,630.88 is: 176,395.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,497.80 : 326,153.45 = 117,630.88 : x
  2. Step 2: Convert to fraction form
    217,497.80/326,153.45 = 117,630.88/x
  3. Step 3: Cross multiply
    217,497.80x = 326,153.45 × 117,630.88
  4. Step 4: Simplify right side
    217,497.80x = 38,365,717,338.54
  5. Step 5: Solve for x
    x = 38,365,717,338.54/217,497.80
  6. Step 6: Final answer
    x = 176,395.89

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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.