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Finding the Fourth Proportional to 76,867.56, 106,077.12 and 43,333.56

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Solution

The fourth proportional to 76,867.56, 106,077.12 and 43,333.56 is: 59,800.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,867.56 : 106,077.12 = 43,333.56 : x
  2. Step 2: Convert to fraction form
    76,867.56/106,077.12 = 43,333.56/x
  3. Step 3: Cross multiply
    76,867.56x = 106,077.12 × 43,333.56
  4. Step 4: Simplify right side
    76,867.56x = 4,596,699,244.15
  5. Step 5: Solve for x
    x = 4,596,699,244.15/76,867.56
  6. Step 6: Final answer
    x = 59,800.25

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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.