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Finding the Fourth Proportional to 89,808.40, 134,566.80 and 56,468.80

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Solution

The fourth proportional to 89,808.40, 134,566.80 and 56,468.80 is: 84,611.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,808.40 : 134,566.80 = 56,468.80 : x
  2. Step 2: Convert to fraction form
    89,808.40/134,566.80 = 56,468.80/x
  3. Step 3: Cross multiply
    89,808.40x = 134,566.80 × 56,468.80
  4. Step 4: Simplify right side
    89,808.40x = 7,598,825,715.84
  5. Step 5: Solve for x
    x = 7,598,825,715.84/89,808.40
  6. Step 6: Final answer
    x = 84,611.53

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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.