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Finding the Fourth Proportional to 123,754.44, 185,317.65 and 103,711.23

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Solution

The fourth proportional to 123,754.44, 185,317.65 and 103,711.23 is: 155,303.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,754.44 : 185,317.65 = 103,711.23 : x
  2. Step 2: Convert to fraction form
    123,754.44/185,317.65 = 103,711.23/x
  3. Step 3: Cross multiply
    123,754.44x = 185,317.65 × 103,711.23
  4. Step 4: Simplify right side
    123,754.44x = 19,219,521,422.21
  5. Step 5: Solve for x
    x = 19,219,521,422.21/123,754.44
  6. Step 6: Final answer
    x = 155,303.69

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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.