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Finding the Fourth Proportional to 176,493.60, 243,471.44 and 115,275.65

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Solution

The fourth proportional to 176,493.60, 243,471.44 and 115,275.65 is: 159,021.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,493.60 : 243,471.44 = 115,275.65 : x
  2. Step 2: Convert to fraction form
    176,493.60/243,471.44 = 115,275.65/x
  3. Step 3: Cross multiply
    176,493.60x = 243,471.44 × 115,275.65
  4. Step 4: Simplify right side
    176,493.60x = 28,066,327,573.27
  5. Step 5: Solve for x
    x = 28,066,327,573.27/176,493.60
  6. Step 6: Final answer
    x = 159,021.79

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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.