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Finding the Fourth Proportional to 223,590.60, 308,561.94 and 121,623.48

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Solution

The fourth proportional to 223,590.60, 308,561.94 and 121,623.48 is: 167,844.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,590.60 : 308,561.94 = 121,623.48 : x
  2. Step 2: Convert to fraction form
    223,590.60/308,561.94 = 121,623.48/x
  3. Step 3: Cross multiply
    223,590.60x = 308,561.94 × 121,623.48
  4. Step 4: Simplify right side
    223,590.60x = 37,528,376,938.35
  5. Step 5: Solve for x
    x = 37,528,376,938.35/223,590.60
  6. Step 6: Final answer
    x = 167,844.16

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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.