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Finding the Fourth Proportional to 238,625.88, 329,301.69 and 136,669.77

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Solution

The fourth proportional to 238,625.88, 329,301.69 and 136,669.77 is: 188,603.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,625.88 : 329,301.69 = 136,669.77 : x
  2. Step 2: Convert to fraction form
    238,625.88/329,301.69 = 136,669.77/x
  3. Step 3: Cross multiply
    238,625.88x = 329,301.69 × 136,669.77
  4. Step 4: Simplify right side
    238,625.88x = 45,005,586,232.91
  5. Step 5: Solve for x
    x = 45,005,586,232.91/238,625.88
  6. Step 6: Final answer
    x = 188,603.12

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1.5x scale

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.