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Finding the Fourth Proportional to 275,784.54, 413,668.53 and 76,116.93

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Solution

The fourth proportional to 275,784.54, 413,668.53 and 76,116.93 is: 114,173.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,784.54 : 413,668.53 = 76,116.93 : x
  2. Step 2: Convert to fraction form
    275,784.54/413,668.53 = 76,116.93/x
  3. Step 3: Cross multiply
    275,784.54x = 413,668.53 × 76,116.93
  4. Step 4: Simplify right side
    275,784.54x = 31,487,178,541.21
  5. Step 5: Solve for x
    x = 31,487,178,541.21/275,784.54
  6. Step 6: Final answer
    x = 114,173.11

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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.