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Finding the Fourth Proportional to 100,450.89, 150,700.95 and 46,390.32

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Solution

The fourth proportional to 100,450.89, 150,700.95 and 46,390.32 is: 69,596.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,450.89 : 150,700.95 = 46,390.32 : x
  2. Step 2: Convert to fraction form
    100,450.89/150,700.95 = 46,390.32/x
  3. Step 3: Cross multiply
    100,450.89x = 150,700.95 × 46,390.32
  4. Step 4: Simplify right side
    100,450.89x = 6,991,065,294.80
  5. Step 5: Solve for x
    x = 6,991,065,294.80/100,450.89
  6. Step 6: Final answer
    x = 69,596.85

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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.