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Finding the Fourth Proportional to 77,083.75, 106,369.69 and 46,864.88

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Solution

The fourth proportional to 77,083.75, 106,369.69 and 46,864.88 is: 64,669.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,083.75 : 106,369.69 = 46,864.88 : x
  2. Step 2: Convert to fraction form
    77,083.75/106,369.69 = 46,864.88/x
  3. Step 3: Cross multiply
    77,083.75x = 106,369.69 × 46,864.88
  4. Step 4: Simplify right side
    77,083.75x = 4,985,002,757.49
  5. Step 5: Solve for x
    x = 4,985,002,757.49/77,083.75
  6. Step 6: Final answer
    x = 64,669.96

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1.5x scale

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.