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Finding the Fourth Proportional to 93,466.26, 128,978.94 and 53,176.26

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Solution

The fourth proportional to 93,466.26, 128,978.94 and 53,176.26 is: 73,380.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,466.26 : 128,978.94 = 53,176.26 : x
  2. Step 2: Convert to fraction form
    93,466.26/128,978.94 = 53,176.26/x
  3. Step 3: Cross multiply
    93,466.26x = 128,978.94 × 53,176.26
  4. Step 4: Simplify right side
    93,466.26x = 6,858,617,647.96
  5. Step 5: Solve for x
    x = 6,858,617,647.96/93,466.26
  6. Step 6: Final answer
    x = 73,380.68

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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.