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Finding the Fourth Proportional to 117,907.50, 162,711.36 and 64,192.38

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Solution

The fourth proportional to 117,907.50, 162,711.36 and 64,192.38 is: 88,584.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,907.50 : 162,711.36 = 64,192.38 : x
  2. Step 2: Convert to fraction form
    117,907.50/162,711.36 = 64,192.38/x
  3. Step 3: Cross multiply
    117,907.50x = 162,711.36 × 64,192.38
  4. Step 4: Simplify right side
    117,907.50x = 10,444,829,451.44
  5. Step 5: Solve for x
    x = 10,444,829,451.44/117,907.50
  6. Step 6: Final answer
    x = 88,584.95

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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.