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Finding the Fourth Proportional to 131,393.38, 181,269.18 and 97,020.48

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Solution

The fourth proportional to 131,393.38, 181,269.18 and 97,020.48 is: 133,848.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,393.38 : 181,269.18 = 97,020.48 : x
  2. Step 2: Convert to fraction form
    131,393.38/181,269.18 = 97,020.48/x
  3. Step 3: Cross multiply
    131,393.38x = 181,269.18 × 97,020.48
  4. Step 4: Simplify right side
    131,393.38x = 17,586,822,852.81
  5. Step 5: Solve for x
    x = 17,586,822,852.81/131,393.38
  6. Step 6: Final answer
    x = 133,848.62

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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.