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Finding the Fourth Proportional to 76,012.53, 113,462.12 and 67,034.67

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Solution

The fourth proportional to 76,012.53, 113,462.12 and 67,034.67 is: 100,061.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,012.53 : 113,462.12 = 67,034.67 : x
  2. Step 2: Convert to fraction form
    76,012.53/113,462.12 = 67,034.67/x
  3. Step 3: Cross multiply
    76,012.53x = 113,462.12 × 67,034.67
  4. Step 4: Simplify right side
    76,012.53x = 7,605,895,771.70
  5. Step 5: Solve for x
    x = 7,605,895,771.70/76,012.53
  6. Step 6: Final answer
    x = 100,061.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.