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Finding the Fourth Proportional to 118,754.45, 163,875.04 and 65,029.08

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Solution

The fourth proportional to 118,754.45, 163,875.04 and 65,029.08 is: 89,736.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,754.45 : 163,875.04 = 65,029.08 : x
  2. Step 2: Convert to fraction form
    118,754.45/163,875.04 = 65,029.08/x
  3. Step 3: Cross multiply
    118,754.45x = 163,875.04 × 65,029.08
  4. Step 4: Simplify right side
    118,754.45x = 10,656,642,923.59
  5. Step 5: Solve for x
    x = 10,656,642,923.59/118,754.45
  6. Step 6: Final answer
    x = 89,736.79

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.