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Finding the Fourth Proportional to 173,896.60, 260,499.30 and 99,938.20

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Solution

The fourth proportional to 173,896.60, 260,499.30 and 99,938.20 is: 149,708.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,896.60 : 260,499.30 = 99,938.20 : x
  2. Step 2: Convert to fraction form
    173,896.60/260,499.30 = 99,938.20/x
  3. Step 3: Cross multiply
    173,896.60x = 260,499.30 × 99,938.20
  4. Step 4: Simplify right side
    173,896.60x = 26,033,831,143.26
  5. Step 5: Solve for x
    x = 26,033,831,143.26/173,896.60
  6. Step 6: Final answer
    x = 149,708.68

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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.