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Finding the Fourth Proportional to 146,075.80, 219,048.90 and 67,214.20

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Solution

The fourth proportional to 146,075.80, 219,048.90 and 67,214.20 is: 100,791.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,075.80 : 219,048.90 = 67,214.20 : x
  2. Step 2: Convert to fraction form
    146,075.80/219,048.90 = 67,214.20/x
  3. Step 3: Cross multiply
    146,075.80x = 219,048.90 × 67,214.20
  4. Step 4: Simplify right side
    146,075.80x = 14,723,196,574.38
  5. Step 5: Solve for x
    x = 14,723,196,574.38/146,075.80
  6. Step 6: Final answer
    x = 100,791.48

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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.