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Finding the Fourth Proportional to 202,321.88, 303,521.88 and 77,653.16

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Solution

The fourth proportional to 202,321.88, 303,521.88 and 77,653.16 is: 116,494.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,321.88 : 303,521.88 = 77,653.16 : x
  2. Step 2: Convert to fraction form
    202,321.88/303,521.88 = 77,653.16/x
  3. Step 3: Cross multiply
    202,321.88x = 303,521.88 × 77,653.16
  4. Step 4: Simplify right side
    202,321.88x = 23,569,433,111.14
  5. Step 5: Solve for x
    x = 23,569,433,111.14/202,321.88
  6. Step 6: Final answer
    x = 116,494.73

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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.