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Finding the Fourth Proportional to 92,479.79, 127,608.43 and 56,162.35

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Solution

The fourth proportional to 92,479.79, 127,608.43 and 56,162.35 is: 77,495.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,479.79 : 127,608.43 = 56,162.35 : x
  2. Step 2: Convert to fraction form
    92,479.79/127,608.43 = 56,162.35/x
  3. Step 3: Cross multiply
    92,479.79x = 127,608.43 × 56,162.35
  4. Step 4: Simplify right side
    92,479.79x = 7,166,789,027.80
  5. Step 5: Solve for x
    x = 7,166,789,027.80/92,479.79
  6. Step 6: Final answer
    x = 77,495.73

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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.