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Finding the Fourth Proportional to 89,051.60, 133,663.80 and 44,728.40

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Solution

The fourth proportional to 89,051.60, 133,663.80 and 44,728.40 is: 67,136.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,051.60 : 133,663.80 = 44,728.40 : x
  2. Step 2: Convert to fraction form
    89,051.60/133,663.80 = 44,728.40/x
  3. Step 3: Cross multiply
    89,051.60x = 133,663.80 × 44,728.40
  4. Step 4: Simplify right side
    89,051.60x = 5,978,567,911.92
  5. Step 5: Solve for x
    x = 5,978,567,911.92/89,051.60
  6. Step 6: Final answer
    x = 67,136.00

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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.