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Finding the Fourth Proportional to 149,990.90, 224,986.35 and 104,890.10

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Solution

The fourth proportional to 149,990.90, 224,986.35 and 104,890.10 is: 157,335.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,990.90 : 224,986.35 = 104,890.10 : x
  2. Step 2: Convert to fraction form
    149,990.90/224,986.35 = 104,890.10/x
  3. Step 3: Cross multiply
    149,990.90x = 224,986.35 × 104,890.10
  4. Step 4: Simplify right side
    149,990.90x = 23,598,840,750.14
  5. Step 5: Solve for x
    x = 23,598,840,750.14/149,990.90
  6. Step 6: Final answer
    x = 157,335.15

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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.