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Finding the Fourth Proportional to 492,267.60, 738,401.40 and 118,290.60

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Solution

The fourth proportional to 492,267.60, 738,401.40 and 118,290.60 is: 177,435.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,267.60 : 738,401.40 = 118,290.60 : x
  2. Step 2: Convert to fraction form
    492,267.60/738,401.40 = 118,290.60/x
  3. Step 3: Cross multiply
    492,267.60x = 738,401.40 × 118,290.60
  4. Step 4: Simplify right side
    492,267.60x = 87,345,944,646.84
  5. Step 5: Solve for x
    x = 87,345,944,646.84/492,267.60
  6. Step 6: Final answer
    x = 177,435.90

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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.