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Finding the Fourth Proportional to 81,794.81, 112,876.71 and 45,984.89

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Solution

The fourth proportional to 81,794.81, 112,876.71 and 45,984.89 is: 63,459.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,794.81 : 112,876.71 = 45,984.89 : x
  2. Step 2: Convert to fraction form
    81,794.81/112,876.71 = 45,984.89/x
  3. Step 3: Cross multiply
    81,794.81x = 112,876.71 × 45,984.89
  4. Step 4: Simplify right side
    81,794.81x = 5,190,623,092.91
  5. Step 5: Solve for x
    x = 5,190,623,092.91/81,794.81
  6. Step 6: Final answer
    x = 63,459.08

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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.