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Finding the Fourth Proportional to 223,543.44, 308,492.01 and 121,569.86

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Solution

The fourth proportional to 223,543.44, 308,492.01 and 121,569.86 is: 167,767.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,543.44 : 308,492.01 = 121,569.86 : x
  2. Step 2: Convert to fraction form
    223,543.44/308,492.01 = 121,569.86/x
  3. Step 3: Cross multiply
    223,543.44x = 308,492.01 × 121,569.86
  4. Step 4: Simplify right side
    223,543.44x = 37,503,331,238.05
  5. Step 5: Solve for x
    x = 37,503,331,238.05/223,543.44
  6. Step 6: Final answer
    x = 167,767.53

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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.