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Finding the Fourth Proportional to 114,231.70, 171,347.55 and 76,906.90

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Solution

The fourth proportional to 114,231.70, 171,347.55 and 76,906.90 is: 115,360.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,231.70 : 171,347.55 = 76,906.90 : x
  2. Step 2: Convert to fraction form
    114,231.70/171,347.55 = 76,906.90/x
  3. Step 3: Cross multiply
    114,231.70x = 171,347.55 × 76,906.90
  4. Step 4: Simplify right side
    114,231.70x = 13,177,808,893.10
  5. Step 5: Solve for x
    x = 13,177,808,893.10/114,231.70
  6. Step 6: Final answer
    x = 115,360.35

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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.