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Finding the Fourth Proportional to 117,907.60, 176,472.60 and 82,915.60

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Solution

The fourth proportional to 117,907.60, 176,472.60 and 82,915.60 is: 124,099.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,907.60 : 176,472.60 = 82,915.60 : x
  2. Step 2: Convert to fraction form
    117,907.60/176,472.60 = 82,915.60/x
  3. Step 3: Cross multiply
    117,907.60x = 176,472.60 × 82,915.60
  4. Step 4: Simplify right side
    117,907.60x = 14,632,331,512.56
  5. Step 5: Solve for x
    x = 14,632,331,512.56/117,907.60
  6. Step 6: Final answer
    x = 124,099.99

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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.