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Finding the Fourth Proportional to 73,338.34, 101,021.16 and 61,397.32

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Solution

The fourth proportional to 73,338.34, 101,021.16 and 61,397.32 is: 84,572.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,338.34 : 101,021.16 = 61,397.32 : x
  2. Step 2: Convert to fraction form
    73,338.34/101,021.16 = 61,397.32/x
  3. Step 3: Cross multiply
    73,338.34x = 101,021.16 × 61,397.32
  4. Step 4: Simplify right side
    73,338.34x = 6,202,428,487.29
  5. Step 5: Solve for x
    x = 6,202,428,487.29/73,338.34
  6. Step 6: Final answer
    x = 84,572.80

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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.