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Finding the Fourth Proportional to 175,345.60, 262,845.60 and 86,612.80

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Solution

The fourth proportional to 175,345.60, 262,845.60 and 86,612.80 is: 129,833.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    175,345.60 : 262,845.60 = 86,612.80 : x
  2. Step 2: Convert to fraction form
    175,345.60/262,845.60 = 86,612.80/x
  3. Step 3: Cross multiply
    175,345.60x = 262,845.60 × 86,612.80
  4. Step 4: Simplify right side
    175,345.60x = 22,765,793,383.68
  5. Step 5: Solve for x
    x = 22,765,793,383.68/175,345.60
  6. Step 6: Final answer
    x = 129,833.84

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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.