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Finding the Fourth Proportional to 93,027.12, 128,376.54 and 50,586

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Solution

The fourth proportional to 93,027.12, 128,376.54 and 50,586 is: 69,808.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,027.12 : 128,376.54 = 50,586 : x
  2. Step 2: Convert to fraction form
    93,027.12/128,376.54 = 50,586/x
  3. Step 3: Cross multiply
    93,027.12x = 128,376.54 × 50,586
  4. Step 4: Simplify right side
    93,027.12x = 6,494,055,652.44
  5. Step 5: Solve for x
    x = 6,494,055,652.44/93,027.12
  6. Step 6: Final answer
    x = 69,808.20

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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.