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Finding the Fourth Proportional to 88,816.40, 133,051.80 and 53,651.60

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Solution

The fourth proportional to 88,816.40, 133,051.80 and 53,651.60 is: 80,373.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,816.40 : 133,051.80 = 53,651.60 : x
  2. Step 2: Convert to fraction form
    88,816.40/133,051.80 = 53,651.60/x
  3. Step 3: Cross multiply
    88,816.40x = 133,051.80 × 53,651.60
  4. Step 4: Simplify right side
    88,816.40x = 7,138,441,952.88
  5. Step 5: Solve for x
    x = 7,138,441,952.88/88,816.40
  6. Step 6: Final answer
    x = 80,373.02

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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.