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Finding the Fourth Proportional to 219,471.70, 329,316.90 and 124,774.60

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Solution

The fourth proportional to 219,471.70, 329,316.90 and 124,774.60 is: 187,224.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,471.70 : 329,316.90 = 124,774.60 : x
  2. Step 2: Convert to fraction form
    219,471.70/329,316.90 = 124,774.60/x
  3. Step 3: Cross multiply
    219,471.70x = 329,316.90 × 124,774.60
  4. Step 4: Simplify right side
    219,471.70x = 41,090,384,470.74
  5. Step 5: Solve for x
    x = 41,090,384,470.74/219,471.70
  6. Step 6: Final answer
    x = 187,224.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.