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Finding the Fourth Proportional to 92,618.30, 127,819.14 and 56,803.43

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Solution

The fourth proportional to 92,618.30, 127,819.14 and 56,803.43 is: 78,392.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,618.30 : 127,819.14 = 56,803.43 : x
  2. Step 2: Convert to fraction form
    92,618.30/127,819.14 = 56,803.43/x
  3. Step 3: Cross multiply
    92,618.30x = 127,819.14 × 56,803.43
  4. Step 4: Simplify right side
    92,618.30x = 7,260,565,678.19
  5. Step 5: Solve for x
    x = 7,260,565,678.19/92,618.30
  6. Step 6: Final answer
    x = 78,392.34

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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.