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Finding the Fourth Proportional to 99,814.54, 149,597.21 and 49,908.91

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Solution

The fourth proportional to 99,814.54, 149,597.21 and 49,908.91 is: 74,801.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,814.54 : 149,597.21 = 49,908.91 : x
  2. Step 2: Convert to fraction form
    99,814.54/149,597.21 = 49,908.91/x
  3. Step 3: Cross multiply
    99,814.54x = 149,597.21 × 49,908.91
  4. Step 4: Simplify right side
    99,814.54x = 7,466,232,984.89
  5. Step 5: Solve for x
    x = 7,466,232,984.89/99,814.54
  6. Step 6: Final answer
    x = 74,801.06

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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.