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Finding the Fourth Proportional to 610,679.32, 916,026.77 and 161,396.31

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Solution

The fourth proportional to 610,679.32, 916,026.77 and 161,396.31 is: 242,096.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,679.32 : 916,026.77 = 161,396.31 : x
  2. Step 2: Convert to fraction form
    610,679.32/916,026.77 = 161,396.31/x
  3. Step 3: Cross multiply
    610,679.32x = 916,026.77 × 161,396.31
  4. Step 4: Simplify right side
    610,679.32x = 147,843,335,959.09
  5. Step 5: Solve for x
    x = 147,843,335,959.09/610,679.32
  6. Step 6: Final answer
    x = 242,096.52

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.