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Finding the Fourth Proportional to 72,866.41, 109,299.63 and 56,250.70

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Solution

The fourth proportional to 72,866.41, 109,299.63 and 56,250.70 is: 84,376.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,866.41 : 109,299.63 = 56,250.70 : x
  2. Step 2: Convert to fraction form
    72,866.41/109,299.63 = 56,250.70/x
  3. Step 3: Cross multiply
    72,866.41x = 109,299.63 × 56,250.70
  4. Step 4: Simplify right side
    72,866.41x = 6,148,180,697.24
  5. Step 5: Solve for x
    x = 6,148,180,697.24/72,866.41
  6. Step 6: Final answer
    x = 84,376.06

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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.