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Finding the Fourth Proportional to 176,534.91, 264,653.10 and 76,620

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Solution

The fourth proportional to 176,534.91, 264,653.10 and 76,620 is: 114,865.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,534.91 : 264,653.10 = 76,620 : x
  2. Step 2: Convert to fraction form
    176,534.91/264,653.10 = 76,620/x
  3. Step 3: Cross multiply
    176,534.91x = 264,653.10 × 76,620
  4. Step 4: Simplify right side
    176,534.91x = 20,277,720,522
  5. Step 5: Solve for x
    x = 20,277,720,522/176,534.91
  6. Step 6: Final answer
    x = 114,865.22

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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.