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Finding the Fourth Proportional to 176,739.40, 264,720.30 and 157,040.20

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Solution

The fourth proportional to 176,739.40, 264,720.30 and 157,040.20 is: 235,214.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,739.40 : 264,720.30 = 157,040.20 : x
  2. Step 2: Convert to fraction form
    176,739.40/264,720.30 = 157,040.20/x
  3. Step 3: Cross multiply
    176,739.40x = 264,720.30 × 157,040.20
  4. Step 4: Simplify right side
    176,739.40x = 41,571,728,856.06
  5. Step 5: Solve for x
    x = 41,571,728,856.06/176,739.40
  6. Step 6: Final answer
    x = 235,214.84

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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.