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Finding the Fourth Proportional to 303,395.16, 418,682.36 and 167,430.36

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Solution

The fourth proportional to 303,395.16, 418,682.36 and 167,430.36 is: 231,052.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,395.16 : 418,682.36 = 167,430.36 : x
  2. Step 2: Convert to fraction form
    303,395.16/418,682.36 = 167,430.36/x
  3. Step 3: Cross multiply
    303,395.16x = 418,682.36 × 167,430.36
  4. Step 4: Simplify right side
    303,395.16x = 70,100,138,260.45
  5. Step 5: Solve for x
    x = 70,100,138,260.45/303,395.16
  6. Step 6: Final answer
    x = 231,052.26

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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.