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Finding the Fourth Proportional to 291,332.72, 402,038.76 and 164,049.44

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Solution

The fourth proportional to 291,332.72, 402,038.76 and 164,049.44 is: 226,388.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,332.72 : 402,038.76 = 164,049.44 : x
  2. Step 2: Convert to fraction form
    291,332.72/402,038.76 = 164,049.44/x
  3. Step 3: Cross multiply
    291,332.72x = 402,038.76 × 164,049.44
  4. Step 4: Simplify right side
    291,332.72x = 65,954,233,436.29
  5. Step 5: Solve for x
    x = 65,954,233,436.29/291,332.72
  6. Step 6: Final answer
    x = 226,388.01

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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.