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Finding the Fourth Proportional to 620,042.27, 930,068.42 and 170,787.92

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Solution

The fourth proportional to 620,042.27, 930,068.42 and 170,787.92 is: 256,183.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,042.27 : 930,068.42 = 170,787.92 : x
  2. Step 2: Convert to fraction form
    620,042.27/930,068.42 = 170,787.92/x
  3. Step 3: Cross multiply
    620,042.27x = 930,068.42 × 170,787.92
  4. Step 4: Simplify right side
    620,042.27x = 158,844,445,405.21
  5. Step 5: Solve for x
    x = 158,844,445,405.21/620,042.27
  6. Step 6: Final answer
    x = 256,183.25

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.