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Finding the Fourth Proportional to 67,431.99, 101,070.07 and 48,435.16

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Solution

The fourth proportional to 67,431.99, 101,070.07 and 48,435.16 is: 72,596.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,431.99 : 101,070.07 = 48,435.16 : x
  2. Step 2: Convert to fraction form
    67,431.99/101,070.07 = 48,435.16/x
  3. Step 3: Cross multiply
    67,431.99x = 101,070.07 × 48,435.16
  4. Step 4: Simplify right side
    67,431.99x = 4,895,345,011.66
  5. Step 5: Solve for x
    x = 4,895,345,011.66/67,431.99
  6. Step 6: Final answer
    x = 72,596.78

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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.