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Finding the Fourth Proportional to 98,104.38, 147,244.08 and 66,961.50

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Solution

The fourth proportional to 98,104.38, 147,244.08 and 66,961.50 is: 100,501.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,104.38 : 147,244.08 = 66,961.50 : x
  2. Step 2: Convert to fraction form
    98,104.38/147,244.08 = 66,961.50/x
  3. Step 3: Cross multiply
    98,104.38x = 147,244.08 × 66,961.50
  4. Step 4: Simplify right side
    98,104.38x = 9,859,684,462.92
  5. Step 5: Solve for x
    x = 9,859,684,462.92/98,104.38
  6. Step 6: Final answer
    x = 100,501.98

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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.