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Finding the Fourth Proportional to 93,752.64, 140,840.64 and 54,406.08

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Solution

The fourth proportional to 93,752.64, 140,840.64 and 54,406.08 is: 81,731.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,752.64 : 140,840.64 = 54,406.08 : x
  2. Step 2: Convert to fraction form
    93,752.64/140,840.64 = 54,406.08/x
  3. Step 3: Cross multiply
    93,752.64x = 140,840.64 × 54,406.08
  4. Step 4: Simplify right side
    93,752.64x = 7,662,587,127.09
  5. Step 5: Solve for x
    x = 7,662,587,127.09/93,752.64
  6. Step 6: Final answer
    x = 81,731.96

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.