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Finding the Fourth Proportional to 73,703.60, 110,572.36 and 21,113.52

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Solution

The fourth proportional to 73,703.60, 110,572.36 and 21,113.52 is: 31,675.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,703.60 : 110,572.36 = 21,113.52 : x
  2. Step 2: Convert to fraction form
    73,703.60/110,572.36 = 21,113.52/x
  3. Step 3: Cross multiply
    73,703.60x = 110,572.36 × 21,113.52
  4. Step 4: Simplify right side
    73,703.60x = 2,334,571,734.31
  5. Step 5: Solve for x
    x = 2,334,571,734.31/73,703.60
  6. Step 6: Final answer
    x = 31,675.14

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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.