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Finding the Fourth Proportional to 183,808.90, 253,655.67 and 102,136.80

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Solution

The fourth proportional to 183,808.90, 253,655.67 and 102,136.80 is: 140,948.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,808.90 : 253,655.67 = 102,136.80 : x
  2. Step 2: Convert to fraction form
    183,808.90/253,655.67 = 102,136.80/x
  3. Step 3: Cross multiply
    183,808.90x = 253,655.67 × 102,136.80
  4. Step 4: Simplify right side
    183,808.90x = 25,907,579,195.36
  5. Step 5: Solve for x
    x = 25,907,579,195.36/183,808.90
  6. Step 6: Final answer
    x = 140,948.45

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1.5x scale

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.