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Finding the Fourth Proportional to 295,805.20, 443,051.70 and 118,220.80

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Solution

The fourth proportional to 295,805.20, 443,051.70 and 118,220.80 is: 177,068.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,805.20 : 443,051.70 = 118,220.80 : x
  2. Step 2: Convert to fraction form
    295,805.20/443,051.70 = 118,220.80/x
  3. Step 3: Cross multiply
    295,805.20x = 443,051.70 × 118,220.80
  4. Step 4: Simplify right side
    295,805.20x = 52,377,926,415.36
  5. Step 5: Solve for x
    x = 52,377,926,415.36/295,805.20
  6. Step 6: Final answer
    x = 177,068.98

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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.