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Finding the Fourth Proportional to 171,193.32, 256,654.44 and 86,875.92

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Solution

The fourth proportional to 171,193.32, 256,654.44 and 86,875.92 is: 130,245.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,193.32 : 256,654.44 = 86,875.92 : x
  2. Step 2: Convert to fraction form
    171,193.32/256,654.44 = 86,875.92/x
  3. Step 3: Cross multiply
    171,193.32x = 256,654.44 × 86,875.92
  4. Step 4: Simplify right side
    171,193.32x = 22,297,090,597.08
  5. Step 5: Solve for x
    x = 22,297,090,597.08/171,193.32
  6. Step 6: Final answer
    x = 130,245.10

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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.