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Finding the Fourth Proportional to 104,843.70, 157,411.35 and 65,477.70

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Solution

The fourth proportional to 104,843.70, 157,411.35 and 65,477.70 is: 98,307.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,843.70 : 157,411.35 = 65,477.70 : x
  2. Step 2: Convert to fraction form
    104,843.70/157,411.35 = 65,477.70/x
  3. Step 3: Cross multiply
    104,843.70x = 157,411.35 × 65,477.70
  4. Step 4: Simplify right side
    104,843.70x = 10,306,933,151.90
  5. Step 5: Solve for x
    x = 10,306,933,151.90/104,843.70
  6. Step 6: Final answer
    x = 98,307.61

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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.