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Finding the Fourth Proportional to 265,177.72, 365,690.86 and 178,159.42

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Solution

The fourth proportional to 265,177.72, 365,690.86 and 178,159.42 is: 245,689.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,177.72 : 365,690.86 = 178,159.42 : x
  2. Step 2: Convert to fraction form
    265,177.72/365,690.86 = 178,159.42/x
  3. Step 3: Cross multiply
    265,177.72x = 365,690.86 × 178,159.42
  4. Step 4: Simplify right side
    265,177.72x = 65,151,271,516.90
  5. Step 5: Solve for x
    x = 65,151,271,516.90/265,177.72
  6. Step 6: Final answer
    x = 245,689.09

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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.