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Finding the Fourth Proportional to 179,938.60, 269,907.90 and 61,570.60

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Solution

The fourth proportional to 179,938.60, 269,907.90 and 61,570.60 is: 92,355.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,938.60 : 269,907.90 = 61,570.60 : x
  2. Step 2: Convert to fraction form
    179,938.60/269,907.90 = 61,570.60/x
  3. Step 3: Cross multiply
    179,938.60x = 269,907.90 × 61,570.60
  4. Step 4: Simplify right side
    179,938.60x = 16,618,391,347.74
  5. Step 5: Solve for x
    x = 16,618,391,347.74/179,938.60
  6. Step 6: Final answer
    x = 92,355.90

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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.