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Finding the Fourth Proportional to 286,520.67, 429,808.32 and 118,052.37

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Solution

The fourth proportional to 286,520.67, 429,808.32 and 118,052.37 is: 177,089.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,520.67 : 429,808.32 = 118,052.37 : x
  2. Step 2: Convert to fraction form
    286,520.67/429,808.32 = 118,052.37/x
  3. Step 3: Cross multiply
    286,520.67x = 429,808.32 × 118,052.37
  4. Step 4: Simplify right side
    286,520.67x = 50,739,890,821.72
  5. Step 5: Solve for x
    x = 50,739,890,821.72/286,520.67
  6. Step 6: Final answer
    x = 177,089.81

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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.