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Finding the Fourth Proportional to 118,967.60, 164,189.01 and 71,220.92

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Solution

The fourth proportional to 118,967.60, 164,189.01 and 71,220.92 is: 98,293.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,967.60 : 164,189.01 = 71,220.92 : x
  2. Step 2: Convert to fraction form
    118,967.60/164,189.01 = 71,220.92/x
  3. Step 3: Cross multiply
    118,967.60x = 164,189.01 × 71,220.92
  4. Step 4: Simplify right side
    118,967.60x = 11,693,692,346.09
  5. Step 5: Solve for x
    x = 11,693,692,346.09/118,967.60
  6. Step 6: Final answer
    x = 98,293.08

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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.