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Finding the Fourth Proportional to 139,567.88, 209,272.54 and 95,248.32

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Solution

The fourth proportional to 139,567.88, 209,272.54 and 95,248.32 is: 142,818.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,567.88 : 209,272.54 = 95,248.32 : x
  2. Step 2: Convert to fraction form
    139,567.88/209,272.54 = 95,248.32/x
  3. Step 3: Cross multiply
    139,567.88x = 209,272.54 × 95,248.32
  4. Step 4: Simplify right side
    139,567.88x = 19,932,858,142.19
  5. Step 5: Solve for x
    x = 19,932,858,142.19/139,567.88
  6. Step 6: Final answer
    x = 142,818.38

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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.