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Finding the Fourth Proportional to 121,203.84, 167,256.32 and 73,476.48

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Solution

The fourth proportional to 121,203.84, 167,256.32 and 73,476.48 is: 101,394.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,203.84 : 167,256.32 = 73,476.48 : x
  2. Step 2: Convert to fraction form
    121,203.84/167,256.32 = 73,476.48/x
  3. Step 3: Cross multiply
    121,203.84x = 167,256.32 × 73,476.48
  4. Step 4: Simplify right side
    121,203.84x = 12,289,405,651.35
  5. Step 5: Solve for x
    x = 12,289,405,651.35/121,203.84
  6. Step 6: Final answer
    x = 101,394.52

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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.