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Finding the Fourth Proportional to 291,251.17, 401,925.81 and 163,926.79

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Solution

The fourth proportional to 291,251.17, 401,925.81 and 163,926.79 is: 226,218.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,251.17 : 401,925.81 = 163,926.79 : x
  2. Step 2: Convert to fraction form
    291,251.17/401,925.81 = 163,926.79/x
  3. Step 3: Cross multiply
    291,251.17x = 401,925.81 × 163,926.79
  4. Step 4: Simplify right side
    291,251.17x = 65,886,407,851.45
  5. Step 5: Solve for x
    x = 65,886,407,851.45/291,251.17
  6. Step 6: Final answer
    x = 226,218.52

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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.