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Finding the Fourth Proportional to 193,603.20, 290,059.20 and 163,881.60

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Solution

The fourth proportional to 193,603.20, 290,059.20 and 163,881.60 is: 245,529.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,603.20 : 290,059.20 = 163,881.60 : x
  2. Step 2: Convert to fraction form
    193,603.20/290,059.20 = 163,881.60/x
  3. Step 3: Cross multiply
    193,603.20x = 290,059.20 × 163,881.60
  4. Step 4: Simplify right side
    193,603.20x = 47,535,365,790.72
  5. Step 5: Solve for x
    x = 47,535,365,790.72/193,603.20
  6. Step 6: Final answer
    x = 245,529.86

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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.