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Finding the Fourth Proportional to 134,201,367.80, 201,302,051.70 and 80,320,945.40

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Solution

The fourth proportional to 134,201,367.80, 201,302,051.70 and 80,320,945.40 is: 120,481,418.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,201,367.80 : 201,302,051.70 = 80,320,945.40 : x
  2. Step 2: Convert to fraction form
    134,201,367.80/201,302,051.70 = 80,320,945.40/x
  3. Step 3: Cross multiply
    134,201,367.80x = 201,302,051.70 × 80,320,945.40
  4. Step 4: Simplify right side
    134,201,367.80x = 16,168,771,103,503,678
  5. Step 5: Solve for x
    x = 16,168,771,103,503,678/134,201,367.80
  6. Step 6: Final answer
    x = 120,481,418.10

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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.