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Finding the Fourth Proportional to 93,287.14, 128,634.62 and 63,019.94

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Solution

The fourth proportional to 93,287.14, 128,634.62 and 63,019.94 is: 86,898.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,287.14 : 128,634.62 = 63,019.94 : x
  2. Step 2: Convert to fraction form
    93,287.14/128,634.62 = 63,019.94/x
  3. Step 3: Cross multiply
    93,287.14x = 128,634.62 × 63,019.94
  4. Step 4: Simplify right side
    93,287.14x = 8,106,546,034.32
  5. Step 5: Solve for x
    x = 8,106,546,034.32/93,287.14
  6. Step 6: Final answer
    x = 86,898.86

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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.