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Finding the Fourth Proportional to 76,785.99, 115,151.44 and 29,414.40

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Solution

The fourth proportional to 76,785.99, 115,151.44 and 29,414.40 is: 44,111.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,785.99 : 115,151.44 = 29,414.40 : x
  2. Step 2: Convert to fraction form
    76,785.99/115,151.44 = 29,414.40/x
  3. Step 3: Cross multiply
    76,785.99x = 115,151.44 × 29,414.40
  4. Step 4: Simplify right side
    76,785.99x = 3,387,110,516.74
  5. Step 5: Solve for x
    x = 3,387,110,516.74/76,785.99
  6. Step 6: Final answer
    x = 44,111.05

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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.