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Finding the Fourth Proportional to 92,368.70, 127,477.95 and 56,067.29

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Solution

The fourth proportional to 92,368.70, 127,477.95 and 56,067.29 is: 77,378.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,368.70 : 127,477.95 = 56,067.29 : x
  2. Step 2: Convert to fraction form
    92,368.70/127,477.95 = 56,067.29/x
  3. Step 3: Cross multiply
    92,368.70x = 127,477.95 × 56,067.29
  4. Step 4: Simplify right side
    92,368.70x = 7,147,343,137.03
  5. Step 5: Solve for x
    x = 7,147,343,137.03/92,368.70
  6. Step 6: Final answer
    x = 77,378.41

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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.