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Finding the Fourth Proportional to 67,145.64, 100,620.40 and 59,764.92

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Solution

The fourth proportional to 67,145.64, 100,620.40 and 59,764.92 is: 89,560.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,145.64 : 100,620.40 = 59,764.92 : x
  2. Step 2: Convert to fraction form
    67,145.64/100,620.40 = 59,764.92/x
  3. Step 3: Cross multiply
    67,145.64x = 100,620.40 × 59,764.92
  4. Step 4: Simplify right side
    67,145.64x = 6,013,570,156.37
  5. Step 5: Solve for x
    x = 6,013,570,156.37/67,145.64
  6. Step 6: Final answer
    x = 89,560.10

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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.