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Finding the Fourth Proportional to 176,572.40, 264,628.20 and 81,791.60

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Solution

The fourth proportional to 176,572.40, 264,628.20 and 81,791.60 is: 122,580.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,572.40 : 264,628.20 = 81,791.60 : x
  2. Step 2: Convert to fraction form
    176,572.40/264,628.20 = 81,791.60/x
  3. Step 3: Cross multiply
    176,572.40x = 264,628.20 × 81,791.60
  4. Step 4: Simplify right side
    176,572.40x = 21,644,363,883.12
  5. Step 5: Solve for x
    x = 21,644,363,883.12/176,572.40
  6. Step 6: Final answer
    x = 122,580.67

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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.