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Finding the Fourth Proportional to 227,030.48, 313,302.20 and 126,428.48

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Solution

The fourth proportional to 227,030.48, 313,302.20 and 126,428.48 is: 174,471.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    227,030.48 : 313,302.20 = 126,428.48 : x
  2. Step 2: Convert to fraction form
    227,030.48/313,302.20 = 126,428.48/x
  3. Step 3: Cross multiply
    227,030.48x = 313,302.20 × 126,428.48
  4. Step 4: Simplify right side
    227,030.48x = 39,610,320,926.66
  5. Step 5: Solve for x
    x = 39,610,320,926.66/227,030.48
  6. Step 6: Final answer
    x = 174,471.38

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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.