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Finding the Fourth Proportional to 208,672.70, 313,009.05 and 60,928.70

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Solution

The fourth proportional to 208,672.70, 313,009.05 and 60,928.70 is: 91,393.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,672.70 : 313,009.05 = 60,928.70 : x
  2. Step 2: Convert to fraction form
    208,672.70/313,009.05 = 60,928.70/x
  3. Step 3: Cross multiply
    208,672.70x = 313,009.05 × 60,928.70
  4. Step 4: Simplify right side
    208,672.70x = 19,071,234,504.74
  5. Step 5: Solve for x
    x = 19,071,234,504.74/208,672.70
  6. Step 6: Final answer
    x = 91,393.05

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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.