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Finding the Fourth Proportional to 149,939.34, 224,797.91 and 90,761.01

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Solution

The fourth proportional to 149,939.34, 224,797.91 and 90,761.01 is: 136,074.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,939.34 : 224,797.91 = 90,761.01 : x
  2. Step 2: Convert to fraction form
    149,939.34/224,797.91 = 90,761.01/x
  3. Step 3: Cross multiply
    149,939.34x = 224,797.91 × 90,761.01
  4. Step 4: Simplify right side
    149,939.34x = 20,402,884,903.68
  5. Step 5: Solve for x
    x = 20,402,884,903.68/149,939.34
  6. Step 6: Final answer
    x = 136,074.26

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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.