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Finding the Fourth Proportional to 303,274.16, 418,434.36 and 195,848.72

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Solution

The fourth proportional to 303,274.16, 418,434.36 and 195,848.72 is: 270,217.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,274.16 : 418,434.36 = 195,848.72 : x
  2. Step 2: Convert to fraction form
    303,274.16/418,434.36 = 195,848.72/x
  3. Step 3: Cross multiply
    303,274.16x = 418,434.36 × 195,848.72
  4. Step 4: Simplify right side
    303,274.16x = 81,949,833,810.02
  5. Step 5: Solve for x
    x = 81,949,833,810.02/303,274.16
  6. Step 6: Final answer
    x = 270,217.00

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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.