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Finding the Fourth Proportional to 168,081.60, 251,776.80 and 115,550.40

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Solution

The fourth proportional to 168,081.60, 251,776.80 and 115,550.40 is: 173,088.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,081.60 : 251,776.80 = 115,550.40 : x
  2. Step 2: Convert to fraction form
    168,081.60/251,776.80 = 115,550.40/x
  3. Step 3: Cross multiply
    168,081.60x = 251,776.80 × 115,550.40
  4. Step 4: Simplify right side
    168,081.60x = 29,092,909,950.72
  5. Step 5: Solve for x
    x = 29,092,909,950.72/168,081.60
  6. Step 6: Final answer
    x = 173,088.01

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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.