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Finding the Fourth Proportional to 76,654.50, 114,948.90 and 26,719.82

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Solution

The fourth proportional to 76,654.50, 114,948.90 and 26,719.82 is: 40,068.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,654.50 : 114,948.90 = 26,719.82 : x
  2. Step 2: Convert to fraction form
    76,654.50/114,948.90 = 26,719.82/x
  3. Step 3: Cross multiply
    76,654.50x = 114,948.90 × 26,719.82
  4. Step 4: Simplify right side
    76,654.50x = 3,071,413,342.45
  5. Step 5: Solve for x
    x = 3,071,413,342.45/76,654.50
  6. Step 6: Final answer
    x = 40,068.27

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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.