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Finding the Fourth Proportional to 104,722.01, 157,023.48 and 71,482.31

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Solution

The fourth proportional to 104,722.01, 157,023.48 and 71,482.31 is: 107,182.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,722.01 : 157,023.48 = 71,482.31 : x
  2. Step 2: Convert to fraction form
    104,722.01/157,023.48 = 71,482.31/x
  3. Step 3: Cross multiply
    104,722.01x = 157,023.48 × 71,482.31
  4. Step 4: Simplify right side
    104,722.01x = 11,224,401,074.64
  5. Step 5: Solve for x
    x = 11,224,401,074.64/104,722.01
  6. Step 6: Final answer
    x = 107,182.83

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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.