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Finding the Fourth Proportional to 217,753,402.60, 325,685,319.90 and 194,889,629.80

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Solution

The fourth proportional to 217,753,402.60, 325,685,319.90 and 194,889,629.80 is: 291,488,861.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,753,402.60 : 325,685,319.90 = 194,889,629.80 : x
  2. Step 2: Convert to fraction form
    217,753,402.60/325,685,319.90 = 194,889,629.80/x
  3. Step 3: Cross multiply
    217,753,402.60x = 325,685,319.90 × 194,889,629.80
  4. Step 4: Simplify right side
    217,753,402.60x = 63,472,691,426,605,576
  5. Step 5: Solve for x
    x = 63,472,691,426,605,576/217,753,402.60
  6. Step 6: Final answer
    x = 291,488,861.57

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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.