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Finding the Fourth Proportional to 238,395.44, 328,892.45 and 136,366.43

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Solution

The fourth proportional to 238,395.44, 328,892.45 and 136,366.43 is: 188,132.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,395.44 : 328,892.45 = 136,366.43 : x
  2. Step 2: Convert to fraction form
    238,395.44/328,892.45 = 136,366.43/x
  3. Step 3: Cross multiply
    238,395.44x = 328,892.45 × 136,366.43
  4. Step 4: Simplify right side
    238,395.44x = 44,849,886,934.16
  5. Step 5: Solve for x
    x = 44,849,886,934.16/238,395.44
  6. Step 6: Final answer
    x = 188,132.32

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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.