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Finding the Fourth Proportional to 228,338.08, 315,107.44 and 127,736.16

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Solution

The fourth proportional to 228,338.08, 315,107.44 and 127,736.16 is: 176,276.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,338.08 : 315,107.44 = 127,736.16 : x
  2. Step 2: Convert to fraction form
    228,338.08/315,107.44 = 127,736.16/x
  3. Step 3: Cross multiply
    228,338.08x = 315,107.44 × 127,736.16
  4. Step 4: Simplify right side
    228,338.08x = 40,250,614,373.03
  5. Step 5: Solve for x
    x = 40,250,614,373.03/228,338.08
  6. Step 6: Final answer
    x = 176,276.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.