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Finding the Fourth Proportional to 206,907.94, 310,362.90 and 62,815

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Solution

The fourth proportional to 206,907.94, 310,362.90 and 62,815 is: 94,222.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,907.94 : 310,362.90 = 62,815 : x
  2. Step 2: Convert to fraction form
    206,907.94/310,362.90 = 62,815/x
  3. Step 3: Cross multiply
    206,907.94x = 310,362.90 × 62,815
  4. Step 4: Simplify right side
    206,907.94x = 19,495,445,563.50
  5. Step 5: Solve for x
    x = 19,495,445,563.50/206,907.94
  6. Step 6: Final answer
    x = 94,222.80

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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.