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Finding the Fourth Proportional to 73,605, 101,574.92 and 40,071

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Solution

The fourth proportional to 73,605, 101,574.92 and 40,071 is: 55,297.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,605 : 101,574.92 = 40,071 : x
  2. Step 2: Convert to fraction form
    73,605/101,574.92 = 40,071/x
  3. Step 3: Cross multiply
    73,605x = 101,574.92 × 40,071
  4. Step 4: Simplify right side
    73,605x = 4,070,208,619.32
  5. Step 5: Solve for x
    x = 4,070,208,619.32/73,605
  6. Step 6: Final answer
    x = 55,297.99

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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.