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Finding the Fourth Proportional to 71,141.76, 98,185.44 and 40,926.51

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Solution

The fourth proportional to 71,141.76, 98,185.44 and 40,926.51 is: 56,484.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,141.76 : 98,185.44 = 40,926.51 : x
  2. Step 2: Convert to fraction form
    71,141.76/98,185.44 = 40,926.51/x
  3. Step 3: Cross multiply
    71,141.76x = 98,185.44 × 40,926.51
  4. Step 4: Simplify right side
    71,141.76x = 4,018,387,392.01
  5. Step 5: Solve for x
    x = 4,018,387,392.01/71,141.76
  6. Step 6: Final answer
    x = 56,484.23

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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.