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Finding the Fourth Proportional to 118,232.30, 176,836.45 and 105,841.90

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Solution

The fourth proportional to 118,232.30, 176,836.45 and 105,841.90 is: 158,304.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,232.30 : 176,836.45 = 105,841.90 : x
  2. Step 2: Convert to fraction form
    118,232.30/176,836.45 = 105,841.90/x
  3. Step 3: Cross multiply
    118,232.30x = 176,836.45 × 105,841.90
  4. Step 4: Simplify right side
    118,232.30x = 18,716,705,857.26
  5. Step 5: Solve for x
    x = 18,716,705,857.26/118,232.30
  6. Step 6: Final answer
    x = 158,304.51

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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.