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Finding the Fourth Proportional to 61,267.12, 84,582.84 and 49,136.56

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Solution

The fourth proportional to 61,267.12, 84,582.84 and 49,136.56 is: 67,835.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,267.12 : 84,582.84 = 49,136.56 : x
  2. Step 2: Convert to fraction form
    61,267.12/84,582.84 = 49,136.56/x
  3. Step 3: Cross multiply
    61,267.12x = 84,582.84 × 49,136.56
  4. Step 4: Simplify right side
    61,267.12x = 4,156,109,792.63
  5. Step 5: Solve for x
    x = 4,156,109,792.63/61,267.12
  6. Step 6: Final answer
    x = 67,835.89

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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.