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Finding the Fourth Proportional to 267,393.93, 401,176.63 and 77,865.67

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Solution

The fourth proportional to 267,393.93, 401,176.63 and 77,865.67 is: 116,823.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,393.93 : 401,176.63 = 77,865.67 : x
  2. Step 2: Convert to fraction form
    267,393.93/401,176.63 = 77,865.67/x
  3. Step 3: Cross multiply
    267,393.93x = 401,176.63 × 77,865.67
  4. Step 4: Simplify right side
    267,393.93x = 31,237,887,682.10
  5. Step 5: Solve for x
    x = 31,237,887,682.10/267,393.93
  6. Step 6: Final answer
    x = 116,823.48

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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.