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Finding the Fourth Proportional to 229,091.40, 316,163.42 and 127,136.12

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Solution

The fourth proportional to 229,091.40, 316,163.42 and 127,136.12 is: 175,457.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,091.40 : 316,163.42 = 127,136.12 : x
  2. Step 2: Convert to fraction form
    229,091.40/316,163.42 = 127,136.12/x
  3. Step 3: Cross multiply
    229,091.40x = 316,163.42 × 127,136.12
  4. Step 4: Simplify right side
    229,091.40x = 40,195,788,764.99
  5. Step 5: Solve for x
    x = 40,195,788,764.99/229,091.40
  6. Step 6: Final answer
    x = 175,457.43

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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.