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Finding the Fourth Proportional to 121,313.70, 181,938.15 and 37,073.70

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Solution

The fourth proportional to 121,313.70, 181,938.15 and 37,073.70 is: 55,600.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,313.70 : 181,938.15 = 37,073.70 : x
  2. Step 2: Convert to fraction form
    121,313.70/181,938.15 = 37,073.70/x
  3. Step 3: Cross multiply
    121,313.70x = 181,938.15 × 37,073.70
  4. Step 4: Simplify right side
    121,313.70x = 6,745,120,391.66
  5. Step 5: Solve for x
    x = 6,745,120,391.66/121,313.70
  6. Step 6: Final answer
    x = 55,600.65

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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.