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Finding the Fourth Proportional to 274,688.96, 379,039.44 and 153,813.44

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Solution

The fourth proportional to 274,688.96, 379,039.44 and 153,813.44 is: 212,245.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,688.96 : 379,039.44 = 153,813.44 : x
  2. Step 2: Convert to fraction form
    274,688.96/379,039.44 = 153,813.44/x
  3. Step 3: Cross multiply
    274,688.96x = 379,039.44 × 153,813.44
  4. Step 4: Simplify right side
    274,688.96x = 58,301,360,162.07
  5. Step 5: Solve for x
    x = 58,301,360,162.07/274,688.96
  6. Step 6: Final answer
    x = 212,245.01

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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.