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Finding the Fourth Proportional to 48,873.70, 73,201.20 and 42,312.70

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Solution

The fourth proportional to 48,873.70, 73,201.20 and 42,312.70 is: 63,374.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,873.70 : 73,201.20 = 42,312.70 : x
  2. Step 2: Convert to fraction form
    48,873.70/73,201.20 = 42,312.70/x
  3. Step 3: Cross multiply
    48,873.70x = 73,201.20 × 42,312.70
  4. Step 4: Simplify right side
    48,873.70x = 3,097,340,415.24
  5. Step 5: Solve for x
    x = 3,097,340,415.24/48,873.70
  6. Step 6: Final answer
    x = 63,374.38

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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.