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Finding the Fourth Proportional to 92,515, 127,673.81 and 56,698.11

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Solution

The fourth proportional to 92,515, 127,673.81 and 56,698.11 is: 78,245.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,515 : 127,673.81 = 56,698.11 : x
  2. Step 2: Convert to fraction form
    92,515/127,673.81 = 56,698.11/x
  3. Step 3: Cross multiply
    92,515x = 127,673.81 × 56,698.11
  4. Step 4: Simplify right side
    92,515x = 7,238,863,723.50
  5. Step 5: Solve for x
    x = 7,238,863,723.50/92,515
  6. Step 6: Final answer
    x = 78,245.30

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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.