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Finding the Fourth Proportional to 238,671.14, 329,368.22 and 136,705.91

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Solution

The fourth proportional to 238,671.14, 329,368.22 and 136,705.91 is: 188,655.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,671.14 : 329,368.22 = 136,705.91 : x
  2. Step 2: Convert to fraction form
    238,671.14/329,368.22 = 136,705.91/x
  3. Step 3: Cross multiply
    238,671.14x = 329,368.22 × 136,705.91
  4. Step 4: Simplify right side
    238,671.14x = 45,026,582,240.18
  5. Step 5: Solve for x
    x = 45,026,582,240.18/238,671.14
  6. Step 6: Final answer
    x = 188,655.33

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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.