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Finding the Fourth Proportional to 332,986.42, 499,476.88 and 143,580.67

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Solution

The fourth proportional to 332,986.42, 499,476.88 and 143,580.67 is: 215,369.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    332,986.42 : 499,476.88 = 143,580.67 : x
  2. Step 2: Convert to fraction form
    332,986.42/499,476.88 = 143,580.67/x
  3. Step 3: Cross multiply
    332,986.42x = 499,476.88 × 143,580.67
  4. Step 4: Simplify right side
    332,986.42x = 71,715,225,079.91
  5. Step 5: Solve for x
    x = 71,715,225,079.91/332,986.42
  6. Step 6: Final answer
    x = 215,369.82

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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.