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Finding the Fourth Proportional to 168,176.80, 251,827.80 and 108,690.40

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Solution

The fourth proportional to 168,176.80, 251,827.80 and 108,690.40 is: 162,752.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,176.80 : 251,827.80 = 108,690.40 : x
  2. Step 2: Convert to fraction form
    168,176.80/251,827.80 = 108,690.40/x
  3. Step 3: Cross multiply
    168,176.80x = 251,827.80 × 108,690.40
  4. Step 4: Simplify right side
    168,176.80x = 27,371,264,313.12
  5. Step 5: Solve for x
    x = 27,371,264,313.12/168,176.80
  6. Step 6: Final answer
    x = 162,752.91

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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.