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Finding the Fourth Proportional to 104,652.80, 156,950.40 and 42,329.60

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Solution

The fourth proportional to 104,652.80, 156,950.40 and 42,329.60 is: 63,482.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,652.80 : 156,950.40 = 42,329.60 : x
  2. Step 2: Convert to fraction form
    104,652.80/156,950.40 = 42,329.60/x
  3. Step 3: Cross multiply
    104,652.80x = 156,950.40 × 42,329.60
  4. Step 4: Simplify right side
    104,652.80x = 6,643,647,651.84
  5. Step 5: Solve for x
    x = 6,643,647,651.84/104,652.80
  6. Step 6: Final answer
    x = 63,482.75

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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.