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Finding the Fourth Proportional to 317,513.12, 476,189.52 and 117,723.68

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Solution

The fourth proportional to 317,513.12, 476,189.52 and 117,723.68 is: 176,555.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,513.12 : 476,189.52 = 117,723.68 : x
  2. Step 2: Convert to fraction form
    317,513.12/476,189.52 = 117,723.68/x
  3. Step 3: Cross multiply
    317,513.12x = 476,189.52 × 117,723.68
  4. Step 4: Simplify right side
    317,513.12x = 56,058,782,671.83
  5. Step 5: Solve for x
    x = 56,058,782,671.83/317,513.12
  6. Step 6: Final answer
    x = 176,555.80

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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.