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Finding the Fourth Proportional to 228,816.48, 343,202.88 and 140,024.28

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Solution

The fourth proportional to 228,816.48, 343,202.88 and 140,024.28 is: 210,023.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,816.48 : 343,202.88 = 140,024.28 : x
  2. Step 2: Convert to fraction form
    228,816.48/343,202.88 = 140,024.28/x
  3. Step 3: Cross multiply
    228,816.48x = 343,202.88 × 140,024.28
  4. Step 4: Simplify right side
    228,816.48x = 48,056,736,165.93
  5. Step 5: Solve for x
    x = 48,056,736,165.93/228,816.48
  6. Step 6: Final answer
    x = 210,023.06

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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.