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Finding the Fourth Proportional to 317,713.80, 476,636.32 and 93,081.57

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Solution

The fourth proportional to 317,713.80, 476,636.32 and 93,081.57 is: 139,641.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,713.80 : 476,636.32 = 93,081.57 : x
  2. Step 2: Convert to fraction form
    317,713.80/476,636.32 = 93,081.57/x
  3. Step 3: Cross multiply
    317,713.80x = 476,636.32 × 93,081.57
  4. Step 4: Simplify right side
    317,713.80x = 44,366,055,313.59
  5. Step 5: Solve for x
    x = 44,366,055,313.59/317,713.80
  6. Step 6: Final answer
    x = 139,641.57

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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.