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Finding the Fourth Proportional to 163,580.82, 245,370.86 and 51,269.60

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Solution

The fourth proportional to 163,580.82, 245,370.86 and 51,269.60 is: 76,904.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,580.82 : 245,370.86 = 51,269.60 : x
  2. Step 2: Convert to fraction form
    163,580.82/245,370.86 = 51,269.60/x
  3. Step 3: Cross multiply
    163,580.82x = 245,370.86 × 51,269.60
  4. Step 4: Simplify right side
    163,580.82x = 12,580,064,360.65
  5. Step 5: Solve for x
    x = 12,580,064,360.65/163,580.82
  6. Step 6: Final answer
    x = 76,904.27

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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.