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Finding the Fourth Proportional to 132,598.88, 182,990.80 and 76,020.96

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Solution

The fourth proportional to 132,598.88, 182,990.80 and 76,020.96 is: 104,911.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,598.88 : 182,990.80 = 76,020.96 : x
  2. Step 2: Convert to fraction form
    132,598.88/182,990.80 = 76,020.96/x
  3. Step 3: Cross multiply
    132,598.88x = 182,990.80 × 76,020.96
  4. Step 4: Simplify right side
    132,598.88x = 13,911,136,287.17
  5. Step 5: Solve for x
    x = 13,911,136,287.17/132,598.88
  6. Step 6: Final answer
    x = 104,911.42

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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.