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Finding the Fourth Proportional to 76,040.60, 114,060.90 and 75,522.20

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Solution

The fourth proportional to 76,040.60, 114,060.90 and 75,522.20 is: 113,283.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,040.60 : 114,060.90 = 75,522.20 : x
  2. Step 2: Convert to fraction form
    76,040.60/114,060.90 = 75,522.20/x
  3. Step 3: Cross multiply
    76,040.60x = 114,060.90 × 75,522.20
  4. Step 4: Simplify right side
    76,040.60x = 8,614,130,101.98
  5. Step 5: Solve for x
    x = 8,614,130,101.98/76,040.60
  6. Step 6: Final answer
    x = 113,283.30

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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.