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Finding the Fourth Proportional to 73,647.60, 110,475.24 and 21,065.04

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Solution

The fourth proportional to 73,647.60, 110,475.24 and 21,065.04 is: 31,598.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,647.60 : 110,475.24 = 21,065.04 : x
  2. Step 2: Convert to fraction form
    73,647.60/110,475.24 = 21,065.04/x
  3. Step 3: Cross multiply
    73,647.60x = 110,475.24 × 21,065.04
  4. Step 4: Simplify right side
    73,647.60x = 2,327,165,349.61
  5. Step 5: Solve for x
    x = 2,327,165,349.61/73,647.60
  6. Step 6: Final answer
    x = 31,598.66

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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.