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Finding the Fourth Proportional to 238,616.63, 329,291.16 and 131,188.49

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Solution

The fourth proportional to 238,616.63, 329,291.16 and 131,188.49 is: 181,040.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,616.63 : 329,291.16 = 131,188.49 : x
  2. Step 2: Convert to fraction form
    238,616.63/329,291.16 = 131,188.49/x
  3. Step 3: Cross multiply
    238,616.63x = 329,291.16 × 131,188.49
  4. Step 4: Simplify right side
    238,616.63x = 43,199,210,050.75
  5. Step 5: Solve for x
    x = 43,199,210,050.75/238,616.63
  6. Step 6: Final answer
    x = 181,040.23

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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.