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Finding the Fourth Proportional to 219,344.56, 302,693.16 and 123,845.56

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Solution

The fourth proportional to 219,344.56, 302,693.16 and 123,845.56 is: 170,905.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,344.56 : 302,693.16 = 123,845.56 : x
  2. Step 2: Convert to fraction form
    219,344.56/302,693.16 = 123,845.56/x
  3. Step 3: Cross multiply
    219,344.56x = 302,693.16 × 123,845.56
  4. Step 4: Simplify right side
    219,344.56x = 37,487,203,908.37
  5. Step 5: Solve for x
    x = 37,487,203,908.37/219,344.56
  6. Step 6: Final answer
    x = 170,905.56

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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.