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Finding the Fourth Proportional to 121,676.33, 167,820.76 and 104,709.13

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Solution

The fourth proportional to 121,676.33, 167,820.76 and 104,709.13 is: 144,418.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,676.33 : 167,820.76 = 104,709.13 : x
  2. Step 2: Convert to fraction form
    121,676.33/167,820.76 = 104,709.13/x
  3. Step 3: Cross multiply
    121,676.33x = 167,820.76 × 104,709.13
  4. Step 4: Simplify right side
    121,676.33x = 17,572,365,486.87
  5. Step 5: Solve for x
    x = 17,572,365,486.87/121,676.33
  6. Step 6: Final answer
    x = 144,418.93

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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.