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Finding the Fourth Proportional to 98,107.56, 147,237.88 and 68,331.56

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Solution

The fourth proportional to 98,107.56, 147,237.88 and 68,331.56 is: 102,550.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,107.56 : 147,237.88 = 68,331.56 : x
  2. Step 2: Convert to fraction form
    98,107.56/147,237.88 = 68,331.56/x
  3. Step 3: Cross multiply
    98,107.56x = 147,237.88 × 68,331.56
  4. Step 4: Simplify right side
    98,107.56x = 10,060,994,031.49
  5. Step 5: Solve for x
    x = 10,060,994,031.49/98,107.56
  6. Step 6: Final answer
    x = 102,550.65

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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.