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Finding the Fourth Proportional to 317,647.17, 476,369.71 and 104,365.92

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Solution

The fourth proportional to 317,647.17, 476,369.71 and 104,365.92 is: 156,515.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,647.17 : 476,369.71 = 104,365.92 : x
  2. Step 2: Convert to fraction form
    317,647.17/476,369.71 = 104,365.92/x
  3. Step 3: Cross multiply
    317,647.17x = 476,369.71 × 104,365.92
  4. Step 4: Simplify right side
    317,647.17x = 49,716,765,156.81
  5. Step 5: Solve for x
    x = 49,716,765,156.81/317,647.17
  6. Step 6: Final answer
    x = 156,515.69

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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.