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Finding the Fourth Proportional to 76,957.50, 106,133.31 and 50,075.22

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Solution

The fourth proportional to 76,957.50, 106,133.31 and 50,075.22 is: 69,059.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,957.50 : 106,133.31 = 50,075.22 : x
  2. Step 2: Convert to fraction form
    76,957.50/106,133.31 = 50,075.22/x
  3. Step 3: Cross multiply
    76,957.50x = 106,133.31 × 50,075.22
  4. Step 4: Simplify right side
    76,957.50x = 5,314,648,847.58
  5. Step 5: Solve for x
    x = 5,314,648,847.58/76,957.50
  6. Step 6: Final answer
    x = 69,059.53

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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.