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Finding the Fourth Proportional to 73,661.68, 110,492.34 and 21,071.08

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Solution

The fourth proportional to 73,661.68, 110,492.34 and 21,071.08 is: 31,606.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,661.68 : 110,492.34 = 21,071.08 : x
  2. Step 2: Convert to fraction form
    73,661.68/110,492.34 = 21,071.08/x
  3. Step 3: Cross multiply
    73,661.68x = 110,492.34 × 21,071.08
  4. Step 4: Simplify right side
    73,661.68x = 2,328,192,935.53
  5. Step 5: Solve for x
    x = 2,328,192,935.53/73,661.68
  6. Step 6: Final answer
    x = 31,606.57

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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.