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Finding the Fourth Proportional to 67,228.40, 100,842.60 and 59,970.80

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Solution

The fourth proportional to 67,228.40, 100,842.60 and 59,970.80 is: 89,956.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,228.40 : 100,842.60 = 59,970.80 : x
  2. Step 2: Convert to fraction form
    67,228.40/100,842.60 = 59,970.80/x
  3. Step 3: Cross multiply
    67,228.40x = 100,842.60 × 59,970.80
  4. Step 4: Simplify right side
    67,228.40x = 6,047,611,396.08
  5. Step 5: Solve for x
    x = 6,047,611,396.08/67,228.40
  6. Step 6: Final answer
    x = 89,956.20

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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.