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Finding the Fourth Proportional to 59,457.60, 89,186.40 and 20,010.60

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Solution

The fourth proportional to 59,457.60, 89,186.40 and 20,010.60 is: 30,015.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,457.60 : 89,186.40 = 20,010.60 : x
  2. Step 2: Convert to fraction form
    59,457.60/89,186.40 = 20,010.60/x
  3. Step 3: Cross multiply
    59,457.60x = 89,186.40 × 20,010.60
  4. Step 4: Simplify right side
    59,457.60x = 1,784,673,375.84
  5. Step 5: Solve for x
    x = 1,784,673,375.84/59,457.60
  6. Step 6: Final answer
    x = 30,015.90

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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.