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Finding the Fourth Proportional to 125,495.77, 188,318.46 and 45,539.98

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Solution

The fourth proportional to 125,495.77, 188,318.46 and 45,539.98 is: 68,337.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,495.77 : 188,318.46 = 45,539.98 : x
  2. Step 2: Convert to fraction form
    125,495.77/188,318.46 = 45,539.98/x
  3. Step 3: Cross multiply
    125,495.77x = 188,318.46 × 45,539.98
  4. Step 4: Simplify right side
    125,495.77x = 8,576,017,732.74
  5. Step 5: Solve for x
    x = 8,576,017,732.74/125,495.77
  6. Step 6: Final answer
    x = 68,337.11

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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.