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Finding the Fourth Proportional to 105,655.24, 158,424.54 and 43,369.48

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Solution

The fourth proportional to 105,655.24, 158,424.54 and 43,369.48 is: 65,030.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,655.24 : 158,424.54 = 43,369.48 : x
  2. Step 2: Convert to fraction form
    105,655.24/158,424.54 = 43,369.48/x
  3. Step 3: Cross multiply
    105,655.24x = 158,424.54 × 43,369.48
  4. Step 4: Simplify right side
    105,655.24x = 6,870,789,919.04
  5. Step 5: Solve for x
    x = 6,870,789,919.04/105,655.24
  6. Step 6: Final answer
    x = 65,030.28

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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.