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Finding the Fourth Proportional to 228,771.56, 343,203.18 and 79,017.32

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Solution

The fourth proportional to 228,771.56, 343,203.18 and 79,017.32 is: 118,541.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,771.56 : 343,203.18 = 79,017.32 : x
  2. Step 2: Convert to fraction form
    228,771.56/343,203.18 = 79,017.32/x
  3. Step 3: Cross multiply
    228,771.56x = 343,203.18 × 79,017.32
  4. Step 4: Simplify right side
    228,771.56x = 27,118,995,499.08
  5. Step 5: Solve for x
    x = 27,118,995,499.08/228,771.56
  6. Step 6: Final answer
    x = 118,541.81

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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.