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Finding the Fourth Proportional to 93,283.66, 128,734.92 and 53,004.25

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Solution

The fourth proportional to 93,283.66, 128,734.92 and 53,004.25 is: 73,147.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,283.66 : 128,734.92 = 53,004.25 : x
  2. Step 2: Convert to fraction form
    93,283.66/128,734.92 = 53,004.25/x
  3. Step 3: Cross multiply
    93,283.66x = 128,734.92 × 53,004.25
  4. Step 4: Simplify right side
    93,283.66x = 6,823,497,883.41
  5. Step 5: Solve for x
    x = 6,823,497,883.41/93,283.66
  6. Step 6: Final answer
    x = 73,147.84

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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.