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Finding the Fourth Proportional to 121,072.77, 167,035.32 and 75,733.56

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Solution

The fourth proportional to 121,072.77, 167,035.32 and 75,733.56 is: 104,484.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,072.77 : 167,035.32 = 75,733.56 : x
  2. Step 2: Convert to fraction form
    121,072.77/167,035.32 = 75,733.56/x
  3. Step 3: Cross multiply
    121,072.77x = 167,035.32 × 75,733.56
  4. Step 4: Simplify right side
    121,072.77x = 12,650,179,429.34
  5. Step 5: Solve for x
    x = 12,650,179,429.34/121,072.77
  6. Step 6: Final answer
    x = 104,484.10

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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.