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Finding the Fourth Proportional to 76,153.59, 105,102.99 and 43,881.93

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Solution

The fourth proportional to 76,153.59, 105,102.99 and 43,881.93 is: 60,563.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,153.59 : 105,102.99 = 43,881.93 : x
  2. Step 2: Convert to fraction form
    76,153.59/105,102.99 = 43,881.93/x
  3. Step 3: Cross multiply
    76,153.59x = 105,102.99 × 43,881.93
  4. Step 4: Simplify right side
    76,153.59x = 4,612,122,049.97
  5. Step 5: Solve for x
    x = 4,612,122,049.97/76,153.59
  6. Step 6: Final answer
    x = 60,563.42

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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.