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Finding the Fourth Proportional to 201,683.90, 302,525.85 and 68,714.30

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Solution

The fourth proportional to 201,683.90, 302,525.85 and 68,714.30 is: 103,071.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,683.90 : 302,525.85 = 68,714.30 : x
  2. Step 2: Convert to fraction form
    201,683.90/302,525.85 = 68,714.30/x
  3. Step 3: Cross multiply
    201,683.90x = 302,525.85 × 68,714.30
  4. Step 4: Simplify right side
    201,683.90x = 20,787,852,014.66
  5. Step 5: Solve for x
    x = 20,787,852,014.66/201,683.90
  6. Step 6: Final answer
    x = 103,071.45

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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.