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Finding the Fourth Proportional to 93,474.78, 128,991.54 and 51,033.66

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Solution

The fourth proportional to 93,474.78, 128,991.54 and 51,033.66 is: 70,424.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,474.78 : 128,991.54 = 51,033.66 : x
  2. Step 2: Convert to fraction form
    93,474.78/128,991.54 = 51,033.66/x
  3. Step 3: Cross multiply
    93,474.78x = 128,991.54 × 51,033.66
  4. Step 4: Simplify right side
    93,474.78x = 6,582,910,395.24
  5. Step 5: Solve for x
    x = 6,582,910,395.24/93,474.78
  6. Step 6: Final answer
    x = 70,424.45

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1.5x scale

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.