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Finding the Fourth Proportional to 76,153.70, 114,253.91 and 34,069.21

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Solution

The fourth proportional to 76,153.70, 114,253.91 and 34,069.21 is: 51,114.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,153.70 : 114,253.91 = 34,069.21 : x
  2. Step 2: Convert to fraction form
    76,153.70/114,253.91 = 34,069.21/x
  3. Step 3: Cross multiply
    76,153.70x = 114,253.91 × 34,069.21
  4. Step 4: Simplify right side
    76,153.70x = 3,892,540,124.89
  5. Step 5: Solve for x
    x = 3,892,540,124.89/76,153.70
  6. Step 6: Final answer
    x = 51,114.26

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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.