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Finding the Fourth Proportional to 92,147.88, 127,203.30 and 61,950.72

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Solution

The fourth proportional to 92,147.88, 127,203.30 and 61,950.72 is: 85,518.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,147.88 : 127,203.30 = 61,950.72 : x
  2. Step 2: Convert to fraction form
    92,147.88/127,203.30 = 61,950.72/x
  3. Step 3: Cross multiply
    92,147.88x = 127,203.30 × 61,950.72
  4. Step 4: Simplify right side
    92,147.88x = 7,880,336,021.38
  5. Step 5: Solve for x
    x = 7,880,336,021.38/92,147.88
  6. Step 6: Final answer
    x = 85,518.36

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1.5x scale

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.