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Finding the Fourth Proportional to 122,598.79, 169,181.62 and 68,886.07

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Solution

The fourth proportional to 122,598.79, 169,181.62 and 68,886.07 is: 95,060.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,598.79 : 169,181.62 = 68,886.07 : x
  2. Step 2: Convert to fraction form
    122,598.79/169,181.62 = 68,886.07/x
  3. Step 3: Cross multiply
    122,598.79x = 169,181.62 × 68,886.07
  4. Step 4: Simplify right side
    122,598.79x = 11,654,256,918.03
  5. Step 5: Solve for x
    x = 11,654,256,918.03/122,598.79
  6. Step 6: Final answer
    x = 95,060.13

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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.