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Finding the Fourth Proportional to 88,809.40, 133,041.30 and 53,644.60

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Solution

The fourth proportional to 88,809.40, 133,041.30 and 53,644.60 is: 80,362.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,809.40 : 133,041.30 = 53,644.60 : x
  2. Step 2: Convert to fraction form
    88,809.40/133,041.30 = 53,644.60/x
  3. Step 3: Cross multiply
    88,809.40x = 133,041.30 × 53,644.60
  4. Step 4: Simplify right side
    88,809.40x = 7,136,947,321.98
  5. Step 5: Solve for x
    x = 7,136,947,321.98/88,809.40
  6. Step 6: Final answer
    x = 80,362.52

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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.