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Finding the Fourth Proportional to 93,471.54, 128,984.72 and 51,029.98

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Solution

The fourth proportional to 93,471.54, 128,984.72 and 51,029.98 is: 70,418.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,471.54 : 128,984.72 = 51,029.98 : x
  2. Step 2: Convert to fraction form
    93,471.54/128,984.72 = 51,029.98/x
  3. Step 3: Cross multiply
    93,471.54x = 128,984.72 × 51,029.98
  4. Step 4: Simplify right side
    93,471.54x = 6,582,087,681.91
  5. Step 5: Solve for x
    x = 6,582,087,681.91/93,471.54
  6. Step 6: Final answer
    x = 70,418.09

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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.