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Finding the Fourth Proportional to 93,287.46, 128,736.74 and 53,001.29

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Solution

The fourth proportional to 93,287.46, 128,736.74 and 53,001.29 is: 73,141.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,287.46 : 128,736.74 = 53,001.29 : x
  2. Step 2: Convert to fraction form
    93,287.46/128,736.74 = 53,001.29/x
  3. Step 3: Cross multiply
    93,287.46x = 128,736.74 × 53,001.29
  4. Step 4: Simplify right side
    93,287.46x = 6,823,213,290.39
  5. Step 5: Solve for x
    x = 6,823,213,290.39/93,287.46
  6. Step 6: Final answer
    x = 73,141.81

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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.