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Finding the Fourth Proportional to 217,365.80, 326,048.70 and 164,877.80

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Solution

The fourth proportional to 217,365.80, 326,048.70 and 164,877.80 is: 247,316.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,365.80 : 326,048.70 = 164,877.80 : x
  2. Step 2: Convert to fraction form
    217,365.80/326,048.70 = 164,877.80/x
  3. Step 3: Cross multiply
    217,365.80x = 326,048.70 × 164,877.80
  4. Step 4: Simplify right side
    217,365.80x = 53,758,192,348.86
  5. Step 5: Solve for x
    x = 53,758,192,348.86/217,365.80
  6. Step 6: Final answer
    x = 247,316.70

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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.