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Finding the Fourth Proportional to 74,795.74, 112,192.72 and 21,489.01

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Solution

The fourth proportional to 74,795.74, 112,192.72 and 21,489.01 is: 32,233.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,795.74 : 112,192.72 = 21,489.01 : x
  2. Step 2: Convert to fraction form
    74,795.74/112,192.72 = 21,489.01/x
  3. Step 3: Cross multiply
    74,795.74x = 112,192.72 × 21,489.01
  4. Step 4: Simplify right side
    74,795.74x = 2,410,910,482.01
  5. Step 5: Solve for x
    x = 2,410,910,482.01/74,795.74
  6. Step 6: Final answer
    x = 32,233.26

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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.