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Finding the Fourth Proportional to 296,814.96, 445,216.20 and 72,176.58

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Solution

The fourth proportional to 296,814.96, 445,216.20 and 72,176.58 is: 108,263.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,814.96 : 445,216.20 = 72,176.58 : x
  2. Step 2: Convert to fraction form
    296,814.96/445,216.20 = 72,176.58/x
  3. Step 3: Cross multiply
    296,814.96x = 445,216.20 × 72,176.58
  4. Step 4: Simplify right side
    296,814.96x = 32,134,182,676.60
  5. Step 5: Solve for x
    x = 32,134,182,676.60/296,814.96
  6. Step 6: Final answer
    x = 108,263.35

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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.