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Finding the Fourth Proportional to 69,293.70, 103,681.06 and 49,349.28

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Solution

The fourth proportional to 69,293.70, 103,681.06 and 49,349.28 is: 73,839.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,293.70 : 103,681.06 = 49,349.28 : x
  2. Step 2: Convert to fraction form
    69,293.70/103,681.06 = 49,349.28/x
  3. Step 3: Cross multiply
    69,293.70x = 103,681.06 × 49,349.28
  4. Step 4: Simplify right side
    69,293.70x = 5,116,585,660.64
  5. Step 5: Solve for x
    x = 5,116,585,660.64/69,293.70
  6. Step 6: Final answer
    x = 73,839.12

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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.