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Finding the Fourth Proportional to 65,910.54, 98,880.40 and 36,313.14

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Solution

The fourth proportional to 65,910.54, 98,880.40 and 36,313.14 is: 54,477.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,910.54 : 98,880.40 = 36,313.14 : x
  2. Step 2: Convert to fraction form
    65,910.54/98,880.40 = 36,313.14/x
  3. Step 3: Cross multiply
    65,910.54x = 98,880.40 × 36,313.14
  4. Step 4: Simplify right side
    65,910.54x = 3,590,657,808.46
  5. Step 5: Solve for x
    x = 3,590,657,808.46/65,910.54
  6. Step 6: Final answer
    x = 54,477.75

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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.