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Finding the Fourth Proportional to 291,393.36, 437,167.82 and 104,423.76

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Solution

The fourth proportional to 291,393.36, 437,167.82 and 104,423.76 is: 156,663.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,393.36 : 437,167.82 = 104,423.76 : x
  2. Step 2: Convert to fraction form
    291,393.36/437,167.82 = 104,423.76/x
  3. Step 3: Cross multiply
    291,393.36x = 437,167.82 × 104,423.76
  4. Step 4: Simplify right side
    291,393.36x = 45,650,707,776.46
  5. Step 5: Solve for x
    x = 45,650,707,776.46/291,393.36
  6. Step 6: Final answer
    x = 156,663.51

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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.