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Finding the Fourth Proportional to 93,693.91, 129,317.75 and 59,694.28

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Solution

The fourth proportional to 93,693.91, 129,317.75 and 59,694.28 is: 82,390.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,693.91 : 129,317.75 = 59,694.28 : x
  2. Step 2: Convert to fraction form
    93,693.91/129,317.75 = 59,694.28/x
  3. Step 3: Cross multiply
    93,693.91x = 129,317.75 × 59,694.28
  4. Step 4: Simplify right side
    93,693.91x = 7,719,529,977.47
  5. Step 5: Solve for x
    x = 7,719,529,977.47/93,693.91
  6. Step 6: Final answer
    x = 82,390.95

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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.