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Finding the Fourth Proportional to 93,003.90, 128,343.86 and 50,563.50

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Solution

The fourth proportional to 93,003.90, 128,343.86 and 50,563.50 is: 69,776.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,003.90 : 128,343.86 = 50,563.50 : x
  2. Step 2: Convert to fraction form
    93,003.90/128,343.86 = 50,563.50/x
  3. Step 3: Cross multiply
    93,003.90x = 128,343.86 × 50,563.50
  4. Step 4: Simplify right side
    93,003.90x = 6,489,514,765.11
  5. Step 5: Solve for x
    x = 6,489,514,765.11/93,003.90
  6. Step 6: Final answer
    x = 69,776.80

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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.