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Finding the Fourth Proportional to 295,391.18, 443,181.54 and 105,722.80

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Solution

The fourth proportional to 295,391.18, 443,181.54 and 105,722.80 is: 158,618.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,391.18 : 443,181.54 = 105,722.80 : x
  2. Step 2: Convert to fraction form
    295,391.18/443,181.54 = 105,722.80/x
  3. Step 3: Cross multiply
    295,391.18x = 443,181.54 × 105,722.80
  4. Step 4: Simplify right side
    295,391.18x = 46,854,393,317.11
  5. Step 5: Solve for x
    x = 46,854,393,317.11/295,391.18
  6. Step 6: Final answer
    x = 158,618.12

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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.