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Finding the Fourth Proportional to 93,158.82, 128,542.24 and 52,874.28

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Solution

The fourth proportional to 93,158.82, 128,542.24 and 52,874.28 is: 72,956.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,158.82 : 128,542.24 = 52,874.28 : x
  2. Step 2: Convert to fraction form
    93,158.82/128,542.24 = 52,874.28/x
  3. Step 3: Cross multiply
    93,158.82x = 128,542.24 × 52,874.28
  4. Step 4: Simplify right side
    93,158.82x = 6,796,578,389.59
  5. Step 5: Solve for x
    x = 6,796,578,389.59/93,158.82
  6. Step 6: Final answer
    x = 72,956.90

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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.