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Finding the Fourth Proportional to 479,241.72, 718,862.58 and 146,774.52

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Solution

The fourth proportional to 479,241.72, 718,862.58 and 146,774.52 is: 220,161.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,241.72 : 718,862.58 = 146,774.52 : x
  2. Step 2: Convert to fraction form
    479,241.72/718,862.58 = 146,774.52/x
  3. Step 3: Cross multiply
    479,241.72x = 718,862.58 × 146,774.52
  4. Step 4: Simplify right side
    479,241.72x = 105,510,710,125.46
  5. Step 5: Solve for x
    x = 105,510,710,125.46/479,241.72
  6. Step 6: Final answer
    x = 220,161.78

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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.