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Finding the Fourth Proportional to 69,079.66, 95,333.43 and 40,784.74

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Solution

The fourth proportional to 69,079.66, 95,333.43 and 40,784.74 is: 56,285.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,079.66 : 95,333.43 = 40,784.74 : x
  2. Step 2: Convert to fraction form
    69,079.66/95,333.43 = 40,784.74/x
  3. Step 3: Cross multiply
    69,079.66x = 95,333.43 × 40,784.74
  4. Step 4: Simplify right side
    69,079.66x = 3,888,149,155.86
  5. Step 5: Solve for x
    x = 3,888,149,155.86/69,079.66
  6. Step 6: Final answer
    x = 56,285.01

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.