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Finding the Fourth Proportional to 492,153.70, 738,230.55 and 118,176.70

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Solution

The fourth proportional to 492,153.70, 738,230.55 and 118,176.70 is: 177,265.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,153.70 : 738,230.55 = 118,176.70 : x
  2. Step 2: Convert to fraction form
    492,153.70/738,230.55 = 118,176.70/x
  3. Step 3: Cross multiply
    492,153.70x = 738,230.55 × 118,176.70
  4. Step 4: Simplify right side
    492,153.70x = 87,241,650,238.19
  5. Step 5: Solve for x
    x = 87,241,650,238.19/492,153.70
  6. Step 6: Final answer
    x = 177,265.05

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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.