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Finding the Fourth Proportional to 125,710.58, 188,689.80 and 92,336.96

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Solution

The fourth proportional to 125,710.58, 188,689.80 and 92,336.96 is: 138,596.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,710.58 : 188,689.80 = 92,336.96 : x
  2. Step 2: Convert to fraction form
    125,710.58/188,689.80 = 92,336.96/x
  3. Step 3: Cross multiply
    125,710.58x = 188,689.80 × 92,336.96
  4. Step 4: Simplify right side
    125,710.58x = 17,423,043,333.00
  5. Step 5: Solve for x
    x = 17,423,043,333.00/125,710.58
  6. Step 6: Final answer
    x = 138,596.47

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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.