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Finding the Fourth Proportional to 88,768.50, 133,218.90 and 65,137.14

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Solution

The fourth proportional to 88,768.50, 133,218.90 and 65,137.14 is: 97,754.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,768.50 : 133,218.90 = 65,137.14 : x
  2. Step 2: Convert to fraction form
    88,768.50/133,218.90 = 65,137.14/x
  3. Step 3: Cross multiply
    88,768.50x = 133,218.90 × 65,137.14
  4. Step 4: Simplify right side
    88,768.50x = 8,677,498,139.95
  5. Step 5: Solve for x
    x = 8,677,498,139.95/88,768.50
  6. Step 6: Final answer
    x = 97,754.25

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1.5x scale

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.