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Finding the Fourth Proportional to 117,684.87, 176,471.73 and 42,752.79

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Solution

The fourth proportional to 117,684.87, 176,471.73 and 42,752.79 is: 64,109.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,684.87 : 176,471.73 = 42,752.79 : x
  2. Step 2: Convert to fraction form
    117,684.87/176,471.73 = 42,752.79/x
  3. Step 3: Cross multiply
    117,684.87x = 176,471.73 × 42,752.79
  4. Step 4: Simplify right side
    117,684.87x = 7,544,658,813.63
  5. Step 5: Solve for x
    x = 7,544,658,813.63/117,684.87
  6. Step 6: Final answer
    x = 64,109.00

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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.