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Finding the Fourth Proportional to 318,358.68, 439,303.50 and 182,366.52

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Solution

The fourth proportional to 318,358.68, 439,303.50 and 182,366.52 is: 251,647.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,358.68 : 439,303.50 = 182,366.52 : x
  2. Step 2: Convert to fraction form
    318,358.68/439,303.50 = 182,366.52/x
  3. Step 3: Cross multiply
    318,358.68x = 439,303.50 × 182,366.52
  4. Step 4: Simplify right side
    318,358.68x = 80,114,250,518.82
  5. Step 5: Solve for x
    x = 80,114,250,518.82/318,358.68
  6. Step 6: Final answer
    x = 251,647.77

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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.