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Finding the Fourth Proportional to 149,722.40, 224,583.60 and 90,673.40

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Solution

The fourth proportional to 149,722.40, 224,583.60 and 90,673.40 is: 136,010.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,722.40 : 224,583.60 = 90,673.40 : x
  2. Step 2: Convert to fraction form
    149,722.40/224,583.60 = 90,673.40/x
  3. Step 3: Cross multiply
    149,722.40x = 224,583.60 × 90,673.40
  4. Step 4: Simplify right side
    149,722.40x = 20,363,758,596.24
  5. Step 5: Solve for x
    x = 20,363,758,596.24/149,722.40
  6. Step 6: Final answer
    x = 136,010.10

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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.