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Finding the Fourth Proportional to 104,017.64, 156,065.54 and 61,921.94

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Solution

The fourth proportional to 104,017.64, 156,065.54 and 61,921.94 is: 92,906.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,017.64 : 156,065.54 = 61,921.94 : x
  2. Step 2: Convert to fraction form
    104,017.64/156,065.54 = 61,921.94/x
  3. Step 3: Cross multiply
    104,017.64x = 156,065.54 × 61,921.94
  4. Step 4: Simplify right side
    104,017.64x = 9,663,879,914.01
  5. Step 5: Solve for x
    x = 9,663,879,914.01/104,017.64
  6. Step 6: Final answer
    x = 92,906.17

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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.