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Finding the Fourth Proportional to 73,233, 101,061.72 and 39,699

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Solution

The fourth proportional to 73,233, 101,061.72 and 39,699 is: 54,784.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,233 : 101,061.72 = 39,699 : x
  2. Step 2: Convert to fraction form
    73,233/101,061.72 = 39,699/x
  3. Step 3: Cross multiply
    73,233x = 101,061.72 × 39,699
  4. Step 4: Simplify right side
    73,233x = 4,012,049,222.28
  5. Step 5: Solve for x
    x = 4,012,049,222.28/73,233
  6. Step 6: Final answer
    x = 54,784.72

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.