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Finding the Fourth Proportional to 223,226.48, 308,054.80 and 121,252.92

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Solution

The fourth proportional to 223,226.48, 308,054.80 and 121,252.92 is: 167,330.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,226.48 : 308,054.80 = 121,252.92 : x
  2. Step 2: Convert to fraction form
    223,226.48/308,054.80 = 121,252.92/x
  3. Step 3: Cross multiply
    223,226.48x = 308,054.80 × 121,252.92
  4. Step 4: Simplify right side
    223,226.48x = 37,352,544,020.02
  5. Step 5: Solve for x
    x = 37,352,544,020.02/223,226.48
  6. Step 6: Final answer
    x = 167,330.26

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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.