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Finding the Fourth Proportional to 208,704.84, 288,010.32 and 118,059.36

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Solution

The fourth proportional to 208,704.84, 288,010.32 and 118,059.36 is: 162,920.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,704.84 : 288,010.32 = 118,059.36 : x
  2. Step 2: Convert to fraction form
    208,704.84/288,010.32 = 118,059.36/x
  3. Step 3: Cross multiply
    208,704.84x = 288,010.32 × 118,059.36
  4. Step 4: Simplify right side
    208,704.84x = 34,002,314,052.60
  5. Step 5: Solve for x
    x = 34,002,314,052.60/208,704.84
  6. Step 6: Final answer
    x = 162,920.58

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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.