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Finding the Fourth Proportional to 76,099.68, 104,999.76 and 45,876.96

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Solution

The fourth proportional to 76,099.68, 104,999.76 and 45,876.96 is: 63,299.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,099.68 : 104,999.76 = 45,876.96 : x
  2. Step 2: Convert to fraction form
    76,099.68/104,999.76 = 45,876.96/x
  3. Step 3: Cross multiply
    76,099.68x = 104,999.76 × 45,876.96
  4. Step 4: Simplify right side
    76,099.68x = 4,817,069,789.53
  5. Step 5: Solve for x
    x = 4,817,069,789.53/76,099.68
  6. Step 6: Final answer
    x = 63,299.47

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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.