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Finding the Fourth Proportional to 98,605.92, 147,858.24 and 45,251.98

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Solution

The fourth proportional to 98,605.92, 147,858.24 and 45,251.98 is: 67,854.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,605.92 : 147,858.24 = 45,251.98 : x
  2. Step 2: Convert to fraction form
    98,605.92/147,858.24 = 45,251.98/x
  3. Step 3: Cross multiply
    98,605.92x = 147,858.24 × 45,251.98
  4. Step 4: Simplify right side
    98,605.92x = 6,690,877,664.82
  5. Step 5: Solve for x
    x = 6,690,877,664.82/98,605.92
  6. Step 6: Final answer
    x = 67,854.72

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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.