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Finding the Fourth Proportional to 439,014.70, 658,522.05 and 106,590.70

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Solution

The fourth proportional to 439,014.70, 658,522.05 and 106,590.70 is: 159,886.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,014.70 : 658,522.05 = 106,590.70 : x
  2. Step 2: Convert to fraction form
    439,014.70/658,522.05 = 106,590.70/x
  3. Step 3: Cross multiply
    439,014.70x = 658,522.05 × 106,590.70
  4. Step 4: Simplify right side
    439,014.70x = 70,192,326,274.94
  5. Step 5: Solve for x
    x = 70,192,326,274.94/439,014.70
  6. Step 6: Final answer
    x = 159,886.05

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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.