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Finding the Fourth Proportional to 117,666.45, 176,428.45 and 47,463.75

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Solution

The fourth proportional to 117,666.45, 176,428.45 and 47,463.75 is: 71,166.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,666.45 : 176,428.45 = 47,463.75 : x
  2. Step 2: Convert to fraction form
    117,666.45/176,428.45 = 47,463.75/x
  3. Step 3: Cross multiply
    117,666.45x = 176,428.45 × 47,463.75
  4. Step 4: Simplify right side
    117,666.45x = 8,373,955,843.69
  5. Step 5: Solve for x
    x = 8,373,955,843.69/117,666.45
  6. Step 6: Final answer
    x = 71,166.89

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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.