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Finding the Fourth Proportional to 264,475.29, 396,628.69 and 86,941.38

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Solution

The fourth proportional to 264,475.29, 396,628.69 and 86,941.38 is: 130,384.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,475.29 : 396,628.69 = 86,941.38 : x
  2. Step 2: Convert to fraction form
    264,475.29/396,628.69 = 86,941.38/x
  3. Step 3: Cross multiply
    264,475.29x = 396,628.69 × 86,941.38
  4. Step 4: Simplify right side
    264,475.29x = 34,483,445,656.19
  5. Step 5: Solve for x
    x = 34,483,445,656.19/264,475.29
  6. Step 6: Final answer
    x = 130,384.38

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.