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Finding the Fourth Proportional to 125,464.14, 173,143.98 and 71,011.98

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Solution

The fourth proportional to 125,464.14, 173,143.98 and 71,011.98 is: 97,998.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,464.14 : 173,143.98 = 71,011.98 : x
  2. Step 2: Convert to fraction form
    125,464.14/173,143.98 = 71,011.98/x
  3. Step 3: Cross multiply
    125,464.14x = 173,143.98 × 71,011.98
  4. Step 4: Simplify right side
    125,464.14x = 12,295,296,844.88
  5. Step 5: Solve for x
    x = 12,295,296,844.88/125,464.14
  6. Step 6: Final answer
    x = 97,998.49

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.