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Finding the Fourth Proportional to 170,980.64, 256,522.56 and 51,041.48

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Solution

The fourth proportional to 170,980.64, 256,522.56 and 51,041.48 is: 76,577.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,980.64 : 256,522.56 = 51,041.48 : x
  2. Step 2: Convert to fraction form
    170,980.64/256,522.56 = 51,041.48/x
  3. Step 3: Cross multiply
    170,980.64x = 256,522.56 × 51,041.48
  4. Step 4: Simplify right side
    170,980.64x = 13,093,291,115.79
  5. Step 5: Solve for x
    x = 13,093,291,115.79/170,980.64
  6. Step 6: Final answer
    x = 76,577.62

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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.