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Finding the Fourth Proportional to 93,257.46, 128,691.26 and 52,971.10

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Solution

The fourth proportional to 93,257.46, 128,691.26 and 52,971.10 is: 73,097.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,257.46 : 128,691.26 = 52,971.10 : x
  2. Step 2: Convert to fraction form
    93,257.46/128,691.26 = 52,971.10/x
  3. Step 3: Cross multiply
    93,257.46x = 128,691.26 × 52,971.10
  4. Step 4: Simplify right side
    93,257.46x = 6,816,916,959.13
  5. Step 5: Solve for x
    x = 6,816,916,959.13/93,257.46
  6. Step 6: Final answer
    x = 73,097.82

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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.