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Finding the Fourth Proportional to 93,876.98, 129,277.22 and 87,873.66

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Solution

The fourth proportional to 93,876.98, 129,277.22 and 87,873.66 is: 121,010.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,876.98 : 129,277.22 = 87,873.66 : x
  2. Step 2: Convert to fraction form
    93,876.98/129,277.22 = 87,873.66/x
  3. Step 3: Cross multiply
    93,876.98x = 129,277.22 × 87,873.66
  4. Step 4: Simplify right side
    93,876.98x = 11,360,062,036.66
  5. Step 5: Solve for x
    x = 11,360,062,036.66/93,876.98
  6. Step 6: Final answer
    x = 121,010.10

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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.