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Finding the Fourth Proportional to 218,838.48, 301,997.04 and 118,236.48

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Solution

The fourth proportional to 218,838.48, 301,997.04 and 118,236.48 is: 163,166.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,838.48 : 301,997.04 = 118,236.48 : x
  2. Step 2: Convert to fraction form
    218,838.48/301,997.04 = 118,236.48/x
  3. Step 3: Cross multiply
    218,838.48x = 301,997.04 × 118,236.48
  4. Step 4: Simplify right side
    218,838.48x = 35,707,066,980.02
  5. Step 5: Solve for x
    x = 35,707,066,980.02/218,838.48
  6. Step 6: Final answer
    x = 163,166.31

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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.