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Finding the Fourth Proportional to 121,041.60, 167,042.16 and 73,267.92

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Solution

The fourth proportional to 121,041.60, 167,042.16 and 73,267.92 is: 101,112.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,041.60 : 167,042.16 = 73,267.92 : x
  2. Step 2: Convert to fraction form
    121,041.60/167,042.16 = 73,267.92/x
  3. Step 3: Cross multiply
    121,041.60x = 167,042.16 × 73,267.92
  4. Step 4: Simplify right side
    121,041.60x = 12,238,831,615.51
  5. Step 5: Solve for x
    x = 12,238,831,615.51/121,041.60
  6. Step 6: Final answer
    x = 101,112.61

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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.