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Finding the Fourth Proportional to 363,445.32, 545,051.52 and 120,241.20

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Solution

The fourth proportional to 363,445.32, 545,051.52 and 120,241.20 is: 180,323.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,445.32 : 545,051.52 = 120,241.20 : x
  2. Step 2: Convert to fraction form
    363,445.32/545,051.52 = 120,241.20/x
  3. Step 3: Cross multiply
    363,445.32x = 545,051.52 × 120,241.20
  4. Step 4: Simplify right side
    363,445.32x = 65,537,648,826.62
  5. Step 5: Solve for x
    x = 65,537,648,826.62/363,445.32
  6. Step 6: Final answer
    x = 180,323.27

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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.