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Finding the Fourth Proportional to 93,398, 128,889.24 and 59,864

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Solution

The fourth proportional to 93,398, 128,889.24 and 59,864 is: 82,612.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,398 : 128,889.24 = 59,864 : x
  2. Step 2: Convert to fraction form
    93,398/128,889.24 = 59,864/x
  3. Step 3: Cross multiply
    93,398x = 128,889.24 × 59,864
  4. Step 4: Simplify right side
    93,398x = 7,715,825,463.36
  5. Step 5: Solve for x
    x = 7,715,825,463.36/93,398
  6. Step 6: Final answer
    x = 82,612.32

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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.