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Finding the Fourth Proportional to 251,776.67, 377,526.96 and 99,819.81

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Solution

The fourth proportional to 251,776.67, 377,526.96 and 99,819.81 is: 149,674.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,776.67 : 377,526.96 = 99,819.81 : x
  2. Step 2: Convert to fraction form
    251,776.67/377,526.96 = 99,819.81/x
  3. Step 3: Cross multiply
    251,776.67x = 377,526.96 × 99,819.81
  4. Step 4: Simplify right side
    251,776.67x = 37,684,668,245.50
  5. Step 5: Solve for x
    x = 37,684,668,245.50/251,776.67
  6. Step 6: Final answer
    x = 149,674.98

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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.