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Finding the Fourth Proportional to 92,328.96, 127,385.64 and 56,481.60

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Solution

The fourth proportional to 92,328.96, 127,385.64 and 56,481.60 is: 77,927.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,328.96 : 127,385.64 = 56,481.60 : x
  2. Step 2: Convert to fraction form
    92,328.96/127,385.64 = 56,481.60/x
  3. Step 3: Cross multiply
    92,328.96x = 127,385.64 × 56,481.60
  4. Step 4: Simplify right side
    92,328.96x = 7,194,944,764.22
  5. Step 5: Solve for x
    x = 7,194,944,764.22/92,328.96
  6. Step 6: Final answer
    x = 77,927.28

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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.