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Finding the Fourth Proportional to 452,954.40, 679,429.16 and 115,994.40

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Solution

The fourth proportional to 452,954.40, 679,429.16 and 115,994.40 is: 173,990.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,954.40 : 679,429.16 = 115,994.40 : x
  2. Step 2: Convert to fraction form
    452,954.40/679,429.16 = 115,994.40/x
  3. Step 3: Cross multiply
    452,954.40x = 679,429.16 × 115,994.40
  4. Step 4: Simplify right side
    452,954.40x = 78,809,977,756.70
  5. Step 5: Solve for x
    x = 78,809,977,756.70/452,954.40
  6. Step 6: Final answer
    x = 173,990.98

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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.