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Finding the Fourth Proportional to 88,728.80, 133,093.20 and 46,592.60

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Solution

The fourth proportional to 88,728.80, 133,093.20 and 46,592.60 is: 69,888.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,728.80 : 133,093.20 = 46,592.60 : x
  2. Step 2: Convert to fraction form
    88,728.80/133,093.20 = 46,592.60/x
  3. Step 3: Cross multiply
    88,728.80x = 133,093.20 × 46,592.60
  4. Step 4: Simplify right side
    88,728.80x = 6,201,158,230.32
  5. Step 5: Solve for x
    x = 6,201,158,230.32/88,728.80
  6. Step 6: Final answer
    x = 69,888.90

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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.