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Finding the Fourth Proportional to 61,763.14, 85,230.90 and 34,905.06

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Solution

The fourth proportional to 61,763.14, 85,230.90 and 34,905.06 is: 48,167.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,763.14 : 85,230.90 = 34,905.06 : x
  2. Step 2: Convert to fraction form
    61,763.14/85,230.90 = 34,905.06/x
  3. Step 3: Cross multiply
    61,763.14x = 85,230.90 × 34,905.06
  4. Step 4: Simplify right side
    61,763.14x = 2,974,989,678.35
  5. Step 5: Solve for x
    x = 2,974,989,678.35/61,763.14
  6. Step 6: Final answer
    x = 48,167.72

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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.