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Finding the Fourth Proportional to 98,385.74, 147,606.96 and 48,480.84

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Solution

The fourth proportional to 98,385.74, 147,606.96 and 48,480.84 is: 72,735.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,385.74 : 147,606.96 = 48,480.84 : x
  2. Step 2: Convert to fraction form
    98,385.74/147,606.96 = 48,480.84/x
  3. Step 3: Cross multiply
    98,385.74x = 147,606.96 × 48,480.84
  4. Step 4: Simplify right side
    98,385.74x = 7,156,109,410.65
  5. Step 5: Solve for x
    x = 7,156,109,410.65/98,385.74
  6. Step 6: Final answer
    x = 72,735.23

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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.