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Finding the Fourth Proportional to 141,152.88, 211,730.28 and 47,659.44

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Solution

The fourth proportional to 141,152.88, 211,730.28 and 47,659.44 is: 71,489.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,152.88 : 211,730.28 = 47,659.44 : x
  2. Step 2: Convert to fraction form
    141,152.88/211,730.28 = 47,659.44/x
  3. Step 3: Cross multiply
    141,152.88x = 211,730.28 × 47,659.44
  4. Step 4: Simplify right side
    141,152.88x = 10,090,946,575.84
  5. Step 5: Solve for x
    x = 10,090,946,575.84/141,152.88
  6. Step 6: Final answer
    x = 71,489.48

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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.