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Finding the Fourth Proportional to 118,810.53, 178,214.25 and 28,853.98

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Solution

The fourth proportional to 118,810.53, 178,214.25 and 28,853.98 is: 43,280.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,810.53 : 178,214.25 = 28,853.98 : x
  2. Step 2: Convert to fraction form
    118,810.53/178,214.25 = 28,853.98/x
  3. Step 3: Cross multiply
    118,810.53x = 178,214.25 × 28,853.98
  4. Step 4: Simplify right side
    118,810.53x = 5,142,190,405.22
  5. Step 5: Solve for x
    x = 5,142,190,405.22/118,810.53
  6. Step 6: Final answer
    x = 43,280.59

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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.