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Finding the Fourth Proportional to 61,189.64, 84,441.61 and 34,334.65

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Solution

The fourth proportional to 61,189.64, 84,441.61 and 34,334.65 is: 47,381.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,189.64 : 84,441.61 = 34,334.65 : x
  2. Step 2: Convert to fraction form
    61,189.64/84,441.61 = 34,334.65/x
  3. Step 3: Cross multiply
    61,189.64x = 84,441.61 × 34,334.65
  4. Step 4: Simplify right side
    61,189.64x = 2,899,272,827.85
  5. Step 5: Solve for x
    x = 2,899,272,827.85/61,189.64
  6. Step 6: Final answer
    x = 47,381.76

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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.