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Finding the Fourth Proportional to 92,767.50, 127,968.12 and 65,950.02

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Solution

The fourth proportional to 92,767.50, 127,968.12 and 65,950.02 is: 90,974.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,767.50 : 127,968.12 = 65,950.02 : x
  2. Step 2: Convert to fraction form
    92,767.50/127,968.12 = 65,950.02/x
  3. Step 3: Cross multiply
    92,767.50x = 127,968.12 × 65,950.02
  4. Step 4: Simplify right side
    92,767.50x = 8,439,500,073.36
  5. Step 5: Solve for x
    x = 8,439,500,073.36/92,767.50
  6. Step 6: Final answer
    x = 90,974.75

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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.