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Finding the Fourth Proportional to 223,865.30, 308,924.06 and 121,888.20

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Solution

The fourth proportional to 223,865.30, 308,924.06 and 121,888.20 is: 168,200.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,865.30 : 308,924.06 = 121,888.20 : x
  2. Step 2: Convert to fraction form
    223,865.30/308,924.06 = 121,888.20/x
  3. Step 3: Cross multiply
    223,865.30x = 308,924.06 × 121,888.20
  4. Step 4: Simplify right side
    223,865.30x = 37,654,197,610.09
  5. Step 5: Solve for x
    x = 37,654,197,610.09/223,865.30
  6. Step 6: Final answer
    x = 168,200.24

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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.