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Finding the Fourth Proportional to 183,827.60, 275,449.80 and 121,425.20

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Solution

The fourth proportional to 183,827.60, 275,449.80 and 121,425.20 is: 181,945.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,827.60 : 275,449.80 = 121,425.20 : x
  2. Step 2: Convert to fraction form
    183,827.60/275,449.80 = 121,425.20/x
  3. Step 3: Cross multiply
    183,827.60x = 275,449.80 × 121,425.20
  4. Step 4: Simplify right side
    183,827.60x = 33,446,547,054.96
  5. Step 5: Solve for x
    x = 33,446,547,054.96/183,827.60
  6. Step 6: Final answer
    x = 181,945.19

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.