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Finding the Fourth Proportional to 108,628.87, 149,907.45 and 63,333.67

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Solution

The fourth proportional to 108,628.87, 149,907.45 and 63,333.67 is: 87,400.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,628.87 : 149,907.45 = 63,333.67 : x
  2. Step 2: Convert to fraction form
    108,628.87/149,907.45 = 63,333.67/x
  3. Step 3: Cross multiply
    108,628.87x = 149,907.45 × 63,333.67
  4. Step 4: Simplify right side
    108,628.87x = 9,494,188,968.84
  5. Step 5: Solve for x
    x = 9,494,188,968.84/108,628.87
  6. Step 6: Final answer
    x = 87,400.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.