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Finding the Fourth Proportional to 99,749.34, 149,648.40 and 33,189.30

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Solution

The fourth proportional to 99,749.34, 149,648.40 and 33,189.30 is: 49,792.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,749.34 : 149,648.40 = 33,189.30 : x
  2. Step 2: Convert to fraction form
    99,749.34/149,648.40 = 33,189.30/x
  3. Step 3: Cross multiply
    99,749.34x = 149,648.40 × 33,189.30
  4. Step 4: Simplify right side
    99,749.34x = 4,966,725,642.12
  5. Step 5: Solve for x
    x = 4,966,725,642.12/99,749.34
  6. Step 6: Final answer
    x = 49,792.07

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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.