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Finding the Fourth Proportional to 288,650.59, 432,669.70 and 111,080.77

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Solution

The fourth proportional to 288,650.59, 432,669.70 and 111,080.77 is: 166,503.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,650.59 : 432,669.70 = 111,080.77 : x
  2. Step 2: Convert to fraction form
    288,650.59/432,669.70 = 111,080.77/x
  3. Step 3: Cross multiply
    288,650.59x = 432,669.70 × 111,080.77
  4. Step 4: Simplify right side
    288,650.59x = 48,061,282,488.85
  5. Step 5: Solve for x
    x = 48,061,282,488.85/288,650.59
  6. Step 6: Final answer
    x = 166,503.32

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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.