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Finding the Fourth Proportional to 246,438.02, 369,693.30 and 77,920.22

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Solution

The fourth proportional to 246,438.02, 369,693.30 and 77,920.22 is: 116,891.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    246,438.02 : 369,693.30 = 77,920.22 : x
  2. Step 2: Convert to fraction form
    246,438.02/369,693.30 = 77,920.22/x
  3. Step 3: Cross multiply
    246,438.02x = 369,693.30 × 77,920.22
  4. Step 4: Simplify right side
    246,438.02x = 28,806,583,268.53
  5. Step 5: Solve for x
    x = 28,806,583,268.53/246,438.02
  6. Step 6: Final answer
    x = 116,891.80

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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.