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Finding the Fourth Proportional to 118,851.74, 164,014.44 and 65,136.62

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Solution

The fourth proportional to 118,851.74, 164,014.44 and 65,136.62 is: 89,888.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,851.74 : 164,014.44 = 65,136.62 : x
  2. Step 2: Convert to fraction form
    118,851.74/164,014.44 = 65,136.62/x
  3. Step 3: Cross multiply
    118,851.74x = 164,014.44 × 65,136.62
  4. Step 4: Simplify right side
    118,851.74x = 10,683,346,252.79
  5. Step 5: Solve for x
    x = 10,683,346,252.79/118,851.74
  6. Step 6: Final answer
    x = 89,888.01

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.