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Finding the Fourth Proportional to 98,730.20, 148,116.90 and 48,834.20

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Solution

The fourth proportional to 98,730.20, 148,116.90 and 48,834.20 is: 73,261.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,730.20 : 148,116.90 = 48,834.20 : x
  2. Step 2: Convert to fraction form
    98,730.20/148,116.90 = 48,834.20/x
  3. Step 3: Cross multiply
    98,730.20x = 148,116.90 × 48,834.20
  4. Step 4: Simplify right side
    98,730.20x = 7,233,170,317.98
  5. Step 5: Solve for x
    x = 7,233,170,317.98/98,730.20
  6. Step 6: Final answer
    x = 73,261.98

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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.