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Finding the Fourth Proportional to 267,368.50, 368,968.53 and 148,136.50

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Solution

The fourth proportional to 267,368.50, 368,968.53 and 148,136.50 is: 204,428.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,368.50 : 368,968.53 = 148,136.50 : x
  2. Step 2: Convert to fraction form
    267,368.50/368,968.53 = 148,136.50/x
  3. Step 3: Cross multiply
    267,368.50x = 368,968.53 × 148,136.50
  4. Step 4: Simplify right side
    267,368.50x = 54,657,706,644.35
  5. Step 5: Solve for x
    x = 54,657,706,644.35/267,368.50
  6. Step 6: Final answer
    x = 204,428.37

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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.