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Finding the Fourth Proportional to 318,019.11, 476,929.44 and 93,323.49

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Solution

The fourth proportional to 318,019.11, 476,929.44 and 93,323.49 is: 139,956.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,019.11 : 476,929.44 = 93,323.49 : x
  2. Step 2: Convert to fraction form
    318,019.11/476,929.44 = 93,323.49/x
  3. Step 3: Cross multiply
    318,019.11x = 476,929.44 × 93,323.49
  4. Step 4: Simplify right side
    318,019.11x = 44,508,719,824.55
  5. Step 5: Solve for x
    x = 44,508,719,824.55/318,019.11
  6. Step 6: Final answer
    x = 139,956.12

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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.