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Finding the Fourth Proportional to 141,386.88, 212,074.80 and 47,892.64

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Solution

The fourth proportional to 141,386.88, 212,074.80 and 47,892.64 is: 71,837.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,386.88 : 212,074.80 = 47,892.64 : x
  2. Step 2: Convert to fraction form
    141,386.88/212,074.80 = 47,892.64/x
  3. Step 3: Cross multiply
    141,386.88x = 212,074.80 × 47,892.64
  4. Step 4: Simplify right side
    141,386.88x = 10,156,822,049.47
  5. Step 5: Solve for x
    x = 10,156,822,049.47/141,386.88
  6. Step 6: Final answer
    x = 71,837.09

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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.