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Finding the Fourth Proportional to 92,914.30, 128,094.78 and 63,841.78

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Solution

The fourth proportional to 92,914.30, 128,094.78 and 63,841.78 is: 88,014.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,914.30 : 128,094.78 = 63,841.78 : x
  2. Step 2: Convert to fraction form
    92,914.30/128,094.78 = 63,841.78/x
  3. Step 3: Cross multiply
    92,914.30x = 128,094.78 × 63,841.78
  4. Step 4: Simplify right side
    92,914.30x = 8,177,798,763.91
  5. Step 5: Solve for x
    x = 8,177,798,763.91/92,914.30
  6. Step 6: Final answer
    x = 88,014.43

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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.