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Finding the Fourth Proportional to 317,520.48, 476,235.84 and 107,130.72

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Solution

The fourth proportional to 317,520.48, 476,235.84 and 107,130.72 is: 160,680.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,520.48 : 476,235.84 = 107,130.72 : x
  2. Step 2: Convert to fraction form
    317,520.48/476,235.84 = 107,130.72/x
  3. Step 3: Cross multiply
    317,520.48x = 476,235.84 × 107,130.72
  4. Step 4: Simplify right side
    317,520.48x = 51,019,488,429.00
  5. Step 5: Solve for x
    x = 51,019,488,429.00/317,520.48
  6. Step 6: Final answer
    x = 160,680.94

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1.5x scale

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.