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Finding the Fourth Proportional to 69,133.91, 103,762.68 and 35,422.93

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Solution

The fourth proportional to 69,133.91, 103,762.68 and 35,422.93 is: 53,166.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,133.91 : 103,762.68 = 35,422.93 : x
  2. Step 2: Convert to fraction form
    69,133.91/103,762.68 = 35,422.93/x
  3. Step 3: Cross multiply
    69,133.91x = 103,762.68 × 35,422.93
  4. Step 4: Simplify right side
    69,133.91x = 3,675,578,150.25
  5. Step 5: Solve for x
    x = 3,675,578,150.25/69,133.91
  6. Step 6: Final answer
    x = 53,166.07

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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.