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Finding the Fourth Proportional to 104,797.35, 157,902.11 and 86,487.50

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Solution

The fourth proportional to 104,797.35, 157,902.11 and 86,487.50 is: 130,313.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,797.35 : 157,902.11 = 86,487.50 : x
  2. Step 2: Convert to fraction form
    104,797.35/157,902.11 = 86,487.50/x
  3. Step 3: Cross multiply
    104,797.35x = 157,902.11 × 86,487.50
  4. Step 4: Simplify right side
    104,797.35x = 13,656,558,738.63
  5. Step 5: Solve for x
    x = 13,656,558,738.63/104,797.35
  6. Step 6: Final answer
    x = 130,313.97

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.