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Finding the Fourth Proportional to 125,712.62, 188,651.02 and 46,889.90

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Solution

The fourth proportional to 125,712.62, 188,651.02 and 46,889.90 is: 70,365.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,712.62 : 188,651.02 = 46,889.90 : x
  2. Step 2: Convert to fraction form
    125,712.62/188,651.02 = 46,889.90/x
  3. Step 3: Cross multiply
    125,712.62x = 188,651.02 × 46,889.90
  4. Step 4: Simplify right side
    125,712.62x = 8,845,827,462.70
  5. Step 5: Solve for x
    x = 8,845,827,462.70/125,712.62
  6. Step 6: Final answer
    x = 70,365.47

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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.