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Finding the Fourth Proportional to 98,455.44, 147,690.94 and 48,508.28

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Solution

The fourth proportional to 98,455.44, 147,690.94 and 48,508.28 is: 72,766.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,455.44 : 147,690.94 = 48,508.28 : x
  2. Step 2: Convert to fraction form
    98,455.44/147,690.94 = 48,508.28/x
  3. Step 3: Cross multiply
    98,455.44x = 147,690.94 × 48,508.28
  4. Step 4: Simplify right side
    98,455.44x = 7,164,233,470.98
  5. Step 5: Solve for x
    x = 7,164,233,470.98/98,455.44
  6. Step 6: Final answer
    x = 72,766.25

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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.