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Finding the Fourth Proportional to 208,062.76, 312,092.52 and 108,171.40

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Solution

The fourth proportional to 208,062.76, 312,092.52 and 108,171.40 is: 162,256.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,062.76 : 312,092.52 = 108,171.40 : x
  2. Step 2: Convert to fraction form
    208,062.76/312,092.52 = 108,171.40/x
  3. Step 3: Cross multiply
    208,062.76x = 312,092.52 × 108,171.40
  4. Step 4: Simplify right side
    208,062.76x = 33,759,484,817.93
  5. Step 5: Solve for x
    x = 33,759,484,817.93/208,062.76
  6. Step 6: Final answer
    x = 162,256.26

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1.5x scale

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.