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Finding the Fourth Proportional to 58,145.60, 87,218.40 and 55,229.60

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Solution

The fourth proportional to 58,145.60, 87,218.40 and 55,229.60 is: 82,844.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,145.60 : 87,218.40 = 55,229.60 : x
  2. Step 2: Convert to fraction form
    58,145.60/87,218.40 = 55,229.60/x
  3. Step 3: Cross multiply
    58,145.60x = 87,218.40 × 55,229.60
  4. Step 4: Simplify right side
    58,145.60x = 4,817,037,344.64
  5. Step 5: Solve for x
    x = 4,817,037,344.64/58,145.60
  6. Step 6: Final answer
    x = 82,844.40

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Similar ratio
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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.