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Finding the Fourth Proportional to 176,251.49, 243,201.40 and 100,785.41

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Solution

The fourth proportional to 176,251.49, 243,201.40 and 100,785.41 is: 139,069.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,251.49 : 243,201.40 = 100,785.41 : x
  2. Step 2: Convert to fraction form
    176,251.49/243,201.40 = 100,785.41/x
  3. Step 3: Cross multiply
    176,251.49x = 243,201.40 × 100,785.41
  4. Step 4: Simplify right side
    176,251.49x = 24,511,152,307.65
  5. Step 5: Solve for x
    x = 24,511,152,307.65/176,251.49
  6. Step 6: Final answer
    x = 139,069.19

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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.