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Finding the Fourth Proportional to 92,093.12, 127,109.44 and 65,207.36

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Solution

The fourth proportional to 92,093.12, 127,109.44 and 65,207.36 is: 90,000.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,093.12 : 127,109.44 = 65,207.36 : x
  2. Step 2: Convert to fraction form
    92,093.12/127,109.44 = 65,207.36/x
  3. Step 3: Cross multiply
    92,093.12x = 127,109.44 × 65,207.36
  4. Step 4: Simplify right side
    92,093.12x = 8,288,471,013.48
  5. Step 5: Solve for x
    x = 8,288,471,013.48/92,093.12
  6. Step 6: Final answer
    x = 90,000.98

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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.