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Finding the Fourth Proportional to 77,773.80, 116,053.91 and 69,396.24

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Solution

The fourth proportional to 77,773.80, 116,053.91 and 69,396.24 is: 103,552.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,773.80 : 116,053.91 = 69,396.24 : x
  2. Step 2: Convert to fraction form
    77,773.80/116,053.91 = 69,396.24/x
  3. Step 3: Cross multiply
    77,773.80x = 116,053.91 × 69,396.24
  4. Step 4: Simplify right side
    77,773.80x = 8,053,704,644.32
  5. Step 5: Solve for x
    x = 8,053,704,644.32/77,773.80
  6. Step 6: Final answer
    x = 103,552.93

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.