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Finding the Fourth Proportional to 77,146.63, 106,476.22 and 45,317.27

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Solution

The fourth proportional to 77,146.63, 106,476.22 and 45,317.27 is: 62,545.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,146.63 : 106,476.22 = 45,317.27 : x
  2. Step 2: Convert to fraction form
    77,146.63/106,476.22 = 45,317.27/x
  3. Step 3: Cross multiply
    77,146.63x = 106,476.22 × 45,317.27
  4. Step 4: Simplify right side
    77,146.63x = 4,825,211,933.16
  5. Step 5: Solve for x
    x = 4,825,211,933.16/77,146.63
  6. Step 6: Final answer
    x = 62,545.99

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.