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Finding the Fourth Proportional to 61,825.84, 85,226.65 and 48,373.74

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Solution

The fourth proportional to 61,825.84, 85,226.65 and 48,373.74 is: 66,682.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,825.84 : 85,226.65 = 48,373.74 : x
  2. Step 2: Convert to fraction form
    61,825.84/85,226.65 = 48,373.74/x
  3. Step 3: Cross multiply
    61,825.84x = 85,226.65 × 48,373.74
  4. Step 4: Simplify right side
    61,825.84x = 4,122,731,687.24
  5. Step 5: Solve for x
    x = 4,122,731,687.24/61,825.84
  6. Step 6: Final answer
    x = 66,682.99

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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.