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Finding the Fourth Proportional to 351,065.60, 525,993.60 and 163,692.80

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Solution

The fourth proportional to 351,065.60, 525,993.60 and 163,692.80 is: 245,257.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,065.60 : 525,993.60 = 163,692.80 : x
  2. Step 2: Convert to fraction form
    351,065.60/525,993.60 = 163,692.80/x
  3. Step 3: Cross multiply
    351,065.60x = 525,993.60 × 163,692.80
  4. Step 4: Simplify right side
    351,065.60x = 86,101,365,166.08
  5. Step 5: Solve for x
    x = 86,101,365,166.08/351,065.60
  6. Step 6: Final answer
    x = 245,257.20

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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.