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Finding the Fourth Proportional to 228,621.56, 315,580.56 and 186,106.28

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Solution

The fourth proportional to 228,621.56, 315,580.56 and 186,106.28 is: 256,894.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,621.56 : 315,580.56 = 186,106.28 : x
  2. Step 2: Convert to fraction form
    228,621.56/315,580.56 = 186,106.28/x
  3. Step 3: Cross multiply
    228,621.56x = 315,580.56 × 186,106.28
  4. Step 4: Simplify right side
    228,621.56x = 58,731,524,061.92
  5. Step 5: Solve for x
    x = 58,731,524,061.92/228,621.56
  6. Step 6: Final answer
    x = 256,894.07

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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.