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Finding the Fourth Proportional to 104,359.91, 143,999.10 and 61,330.68

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Solution

The fourth proportional to 104,359.91, 143,999.10 and 61,330.68 is: 84,626.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,359.91 : 143,999.10 = 61,330.68 : x
  2. Step 2: Convert to fraction form
    104,359.91/143,999.10 = 61,330.68/x
  3. Step 3: Cross multiply
    104,359.91x = 143,999.10 × 61,330.68
  4. Step 4: Simplify right side
    104,359.91x = 8,831,562,722.39
  5. Step 5: Solve for x
    x = 8,831,562,722.39/104,359.91
  6. Step 6: Final answer
    x = 84,626.01

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.