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Finding the Fourth Proportional to 208,504.44, 287,728.38 and 113,009.04

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Solution

The fourth proportional to 208,504.44, 287,728.38 and 113,009.04 is: 155,948.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,504.44 : 287,728.38 = 113,009.04 : x
  2. Step 2: Convert to fraction form
    208,504.44/287,728.38 = 113,009.04/x
  3. Step 3: Cross multiply
    208,504.44x = 287,728.38 × 113,009.04
  4. Step 4: Simplify right side
    208,504.44x = 32,515,908,004.56
  5. Step 5: Solve for x
    x = 32,515,908,004.56/208,504.44
  6. Step 6: Final answer
    x = 155,948.28

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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.