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Finding the Fourth Proportional to 107,416.80, 161,125.20 and 54,928.80

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Solution

The fourth proportional to 107,416.80, 161,125.20 and 54,928.80 is: 82,393.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,416.80 : 161,125.20 = 54,928.80 : x
  2. Step 2: Convert to fraction form
    107,416.80/161,125.20 = 54,928.80/x
  3. Step 3: Cross multiply
    107,416.80x = 161,125.20 × 54,928.80
  4. Step 4: Simplify right side
    107,416.80x = 8,850,413,885.76
  5. Step 5: Solve for x
    x = 8,850,413,885.76/107,416.80
  6. Step 6: Final answer
    x = 82,393.20

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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.