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Finding the Fourth Proportional to 238,596.83, 329,269.94 and 129,708.51

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Solution

The fourth proportional to 238,596.83, 329,269.94 and 129,708.51 is: 179,001.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,596.83 : 329,269.94 = 129,708.51 : x
  2. Step 2: Convert to fraction form
    238,596.83/329,269.94 = 129,708.51/x
  3. Step 3: Cross multiply
    238,596.83x = 329,269.94 × 129,708.51
  4. Step 4: Simplify right side
    238,596.83x = 42,709,113,305.19
  5. Step 5: Solve for x
    x = 42,709,113,305.19/238,596.83
  6. Step 6: Final answer
    x = 179,001.18

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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.