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Finding the Fourth Proportional to 71,942.45, 99,235.73 and 46,438.99

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Solution

The fourth proportional to 71,942.45, 99,235.73 and 46,438.99 is: 64,056.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,942.45 : 99,235.73 = 46,438.99 : x
  2. Step 2: Convert to fraction form
    71,942.45/99,235.73 = 46,438.99/x
  3. Step 3: Cross multiply
    71,942.45x = 99,235.73 × 46,438.99
  4. Step 4: Simplify right side
    71,942.45x = 4,608,406,344.74
  5. Step 5: Solve for x
    x = 4,608,406,344.74/71,942.45
  6. Step 6: Final answer
    x = 64,056.85

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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.