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Finding the Fourth Proportional to 192,124.90, 288,187.35 and 133,075.90

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Solution

The fourth proportional to 192,124.90, 288,187.35 and 133,075.90 is: 199,613.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,124.90 : 288,187.35 = 133,075.90 : x
  2. Step 2: Convert to fraction form
    192,124.90/288,187.35 = 133,075.90/x
  3. Step 3: Cross multiply
    192,124.90x = 288,187.35 × 133,075.90
  4. Step 4: Simplify right side
    192,124.90x = 38,350,790,969.87
  5. Step 5: Solve for x
    x = 38,350,790,969.87/192,124.90
  6. Step 6: Final answer
    x = 199,613.85

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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.