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Finding the Fourth Proportional to 170,580.48, 255,872.32 and 65,374.40

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Solution

The fourth proportional to 170,580.48, 255,872.32 and 65,374.40 is: 98,062.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,580.48 : 255,872.32 = 65,374.40 : x
  2. Step 2: Convert to fraction form
    170,580.48/255,872.32 = 65,374.40/x
  3. Step 3: Cross multiply
    170,580.48x = 255,872.32 × 65,374.40
  4. Step 4: Simplify right side
    170,580.48x = 16,727,499,396.61
  5. Step 5: Solve for x
    x = 16,727,499,396.61/170,580.48
  6. Step 6: Final answer
    x = 98,062.21

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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.