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Finding the Fourth Proportional to 76,700.54, 105,845.64 and 44,439.50

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Solution

The fourth proportional to 76,700.54, 105,845.64 and 44,439.50 is: 61,325.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,700.54 : 105,845.64 = 44,439.50 : x
  2. Step 2: Convert to fraction form
    76,700.54/105,845.64 = 44,439.50/x
  3. Step 3: Cross multiply
    76,700.54x = 105,845.64 × 44,439.50
  4. Step 4: Simplify right side
    76,700.54x = 4,703,727,318.78
  5. Step 5: Solve for x
    x = 4,703,727,318.78/76,700.54
  6. Step 6: Final answer
    x = 61,325.87

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1.5x scale

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.