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Finding the Fourth Proportional to 353,994.60, 530,117.10 and 235,021.80

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Solution

The fourth proportional to 353,994.60, 530,117.10 and 235,021.80 is: 351,951.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,994.60 : 530,117.10 = 235,021.80 : x
  2. Step 2: Convert to fraction form
    353,994.60/530,117.10 = 235,021.80/x
  3. Step 3: Cross multiply
    353,994.60x = 530,117.10 × 235,021.80
  4. Step 4: Simplify right side
    353,994.60x = 124,589,075,052.78
  5. Step 5: Solve for x
    x = 124,589,075,052.78/353,994.60
  6. Step 6: Final answer
    x = 351,951.91

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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.