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Finding the Fourth Proportional to 74,670.49, 103,045.27 and 41,136.49

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Solution

The fourth proportional to 74,670.49, 103,045.27 and 41,136.49 is: 56,768.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,670.49 : 103,045.27 = 41,136.49 : x
  2. Step 2: Convert to fraction form
    74,670.49/103,045.27 = 41,136.49/x
  3. Step 3: Cross multiply
    74,670.49x = 103,045.27 × 41,136.49
  4. Step 4: Simplify right side
    74,670.49x = 4,238,920,358.45
  5. Step 5: Solve for x
    x = 4,238,920,358.45/74,670.49
  6. Step 6: Final answer
    x = 56,768.35

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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.