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Finding the Fourth Proportional to 76,522.75, 105,553.74 and 52,607.91

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Solution

The fourth proportional to 76,522.75, 105,553.74 and 52,607.91 is: 72,566.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,522.75 : 105,553.74 = 52,607.91 : x
  2. Step 2: Convert to fraction form
    76,522.75/105,553.74 = 52,607.91/x
  3. Step 3: Cross multiply
    76,522.75x = 105,553.74 × 52,607.91
  4. Step 4: Simplify right side
    76,522.75x = 5,552,961,654.08
  5. Step 5: Solve for x
    x = 5,552,961,654.08/76,522.75
  6. Step 6: Final answer
    x = 72,566.15

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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.