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Finding the Fourth Proportional to 92,967.29, 128,295.78 and 55,234.25

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Solution

The fourth proportional to 92,967.29, 128,295.78 and 55,234.25 is: 76,223.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,967.29 : 128,295.78 = 55,234.25 : x
  2. Step 2: Convert to fraction form
    92,967.29/128,295.78 = 55,234.25/x
  3. Step 3: Cross multiply
    92,967.29x = 128,295.78 × 55,234.25
  4. Step 4: Simplify right side
    92,967.29x = 7,086,321,186.47
  5. Step 5: Solve for x
    x = 7,086,321,186.47/92,967.29
  6. Step 6: Final answer
    x = 76,223.81

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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.