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Finding the Fourth Proportional to 490,329.32, 735,536.21 and 135,343.35

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Solution

The fourth proportional to 490,329.32, 735,536.21 and 135,343.35 is: 203,026.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,329.32 : 735,536.21 = 135,343.35 : x
  2. Step 2: Convert to fraction form
    490,329.32/735,536.21 = 135,343.35/x
  3. Step 3: Cross multiply
    490,329.32x = 735,536.21 × 135,343.35
  4. Step 4: Simplify right side
    490,329.32x = 99,549,934,030.99
  5. Step 5: Solve for x
    x = 99,549,934,030.99/490,329.32
  6. Step 6: Final answer
    x = 203,026.68

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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.