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Finding the Fourth Proportional to 128,264, 192,398.88 and 44,024

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Solution

The fourth proportional to 128,264, 192,398.88 and 44,024 is: 66,036.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,264 : 192,398.88 = 44,024 : x
  2. Step 2: Convert to fraction form
    128,264/192,398.88 = 44,024/x
  3. Step 3: Cross multiply
    128,264x = 192,398.88 × 44,024
  4. Step 4: Simplify right side
    128,264x = 8,470,168,293.12
  5. Step 5: Solve for x
    x = 8,470,168,293.12/128,264
  6. Step 6: Final answer
    x = 66,036.99

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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.