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Finding the Fourth Proportional to 99,900.84, 149,925.23 and 47,310.48

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Solution

The fourth proportional to 99,900.84, 149,925.23 and 47,310.48 is: 71,000.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,900.84 : 149,925.23 = 47,310.48 : x
  2. Step 2: Convert to fraction form
    99,900.84/149,925.23 = 47,310.48/x
  3. Step 3: Cross multiply
    99,900.84x = 149,925.23 × 47,310.48
  4. Step 4: Simplify right side
    99,900.84x = 7,093,034,536.27
  5. Step 5: Solve for x
    x = 7,093,034,536.27/99,900.84
  6. Step 6: Final answer
    x = 71,000.75

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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.