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Finding the Fourth Proportional to 201,176.80, 301,995.60 and 118,117.60

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Solution

The fourth proportional to 201,176.80, 301,995.60 and 118,117.60 is: 177,311.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,176.80 : 301,995.60 = 118,117.60 : x
  2. Step 2: Convert to fraction form
    201,176.80/301,995.60 = 118,117.60/x
  3. Step 3: Cross multiply
    201,176.80x = 301,995.60 × 118,117.60
  4. Step 4: Simplify right side
    201,176.80x = 35,670,995,482.56
  5. Step 5: Solve for x
    x = 35,670,995,482.56/201,176.80
  6. Step 6: Final answer
    x = 177,311.68

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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.