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Finding the Fourth Proportional to 99,606.88, 149,424.90 and 36,430.12

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Solution

The fourth proportional to 99,606.88, 149,424.90 and 36,430.12 is: 54,650.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,606.88 : 149,424.90 = 36,430.12 : x
  2. Step 2: Convert to fraction form
    99,606.88/149,424.90 = 36,430.12/x
  3. Step 3: Cross multiply
    99,606.88x = 149,424.90 × 36,430.12
  4. Step 4: Simplify right side
    99,606.88x = 5,443,567,037.99
  5. Step 5: Solve for x
    x = 5,443,567,037.99/99,606.88
  6. Step 6: Final answer
    x = 54,650.51

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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.