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Finding the Fourth Proportional to 223,226.55, 308,054.95 and 121,254.00

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Solution

The fourth proportional to 223,226.55, 308,054.95 and 121,254.00 is: 167,331.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,226.55 : 308,054.95 = 121,254.00 : x
  2. Step 2: Convert to fraction form
    223,226.55/308,054.95 = 121,254.00/x
  3. Step 3: Cross multiply
    223,226.55x = 308,054.95 × 121,254.00
  4. Step 4: Simplify right side
    223,226.55x = 37,352,893,448.96
  5. Step 5: Solve for x
    x = 37,352,893,448.96/223,226.55
  6. Step 6: Final answer
    x = 167,331.77

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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.