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Finding the Fourth Proportional to 102,807.01, 154,257.90 and 63,338.95

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Solution

The fourth proportional to 102,807.01, 154,257.90 and 63,338.95 is: 95,037.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,807.01 : 154,257.90 = 63,338.95 : x
  2. Step 2: Convert to fraction form
    102,807.01/154,257.90 = 63,338.95/x
  3. Step 3: Cross multiply
    102,807.01x = 154,257.90 × 63,338.95
  4. Step 4: Simplify right side
    102,807.01x = 9,770,533,415.21
  5. Step 5: Solve for x
    x = 9,770,533,415.21/102,807.01
  6. Step 6: Final answer
    x = 95,037.62

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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.