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Finding the Fourth Proportional to 118,681.74, 178,009.34 and 29,935.26

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Solution

The fourth proportional to 118,681.74, 178,009.34 and 29,935.26 is: 44,899.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,681.74 : 178,009.34 = 29,935.26 : x
  2. Step 2: Convert to fraction form
    118,681.74/178,009.34 = 29,935.26/x
  3. Step 3: Cross multiply
    118,681.74x = 178,009.34 × 29,935.26
  4. Step 4: Simplify right side
    118,681.74x = 5,328,755,725.65
  5. Step 5: Solve for x
    x = 5,328,755,725.65/118,681.74
  6. Step 6: Final answer
    x = 44,899.54

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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.