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Finding the Fourth Proportional to 238,469.20, 357,703.80 and 72,235.60

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Solution

The fourth proportional to 238,469.20, 357,703.80 and 72,235.60 is: 108,353.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,469.20 : 357,703.80 = 72,235.60 : x
  2. Step 2: Convert to fraction form
    238,469.20/357,703.80 = 72,235.60/x
  3. Step 3: Cross multiply
    238,469.20x = 357,703.80 × 72,235.60
  4. Step 4: Simplify right side
    238,469.20x = 25,838,948,615.28
  5. Step 5: Solve for x
    x = 25,838,948,615.28/238,469.20
  6. Step 6: Final answer
    x = 108,353.40

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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.