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Finding the Fourth Proportional to 208,169.60, 287,284.20 and 127,601.60

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Solution

The fourth proportional to 208,169.60, 287,284.20 and 127,601.60 is: 176,096.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,169.60 : 287,284.20 = 127,601.60 : x
  2. Step 2: Convert to fraction form
    208,169.60/287,284.20 = 127,601.60/x
  3. Step 3: Cross multiply
    208,169.60x = 287,284.20 × 127,601.60
  4. Step 4: Simplify right side
    208,169.60x = 36,657,923,574.72
  5. Step 5: Solve for x
    x = 36,657,923,574.72/208,169.60
  6. Step 6: Final answer
    x = 176,096.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.