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Finding the Fourth Proportional to 171,345.12, 256,968.36 and 59,020.80

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Solution

The fourth proportional to 171,345.12, 256,968.36 and 59,020.80 is: 88,514.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,345.12 : 256,968.36 = 59,020.80 : x
  2. Step 2: Convert to fraction form
    171,345.12/256,968.36 = 59,020.80/x
  3. Step 3: Cross multiply
    171,345.12x = 256,968.36 × 59,020.80
  4. Step 4: Simplify right side
    171,345.12x = 15,166,478,181.89
  5. Step 5: Solve for x
    x = 15,166,478,181.89/171,345.12
  6. Step 6: Final answer
    x = 88,514.21

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.