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Finding the Fourth Proportional to 125,461.98, 188,143.88 and 45,480.96

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Solution

The fourth proportional to 125,461.98, 188,143.88 and 45,480.96 is: 68,203.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,461.98 : 188,143.88 = 45,480.96 : x
  2. Step 2: Convert to fraction form
    125,461.98/188,143.88 = 45,480.96/x
  3. Step 3: Cross multiply
    125,461.98x = 188,143.88 × 45,480.96
  4. Step 4: Simplify right side
    125,461.98x = 8,556,964,053.12
  5. Step 5: Solve for x
    x = 8,556,964,053.12/125,461.98
  6. Step 6: Final answer
    x = 68,203.64

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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.