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Finding the Fourth Proportional to 132,807.75, 199,250.64 and 39,315.93

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Solution

The fourth proportional to 132,807.75, 199,250.64 and 39,315.93 is: 58,985.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,807.75 : 199,250.64 = 39,315.93 : x
  2. Step 2: Convert to fraction form
    132,807.75/199,250.64 = 39,315.93/x
  3. Step 3: Cross multiply
    132,807.75x = 199,250.64 × 39,315.93
  4. Step 4: Simplify right side
    132,807.75x = 7,833,724,214.70
  5. Step 5: Solve for x
    x = 7,833,724,214.70/132,807.75
  6. Step 6: Final answer
    x = 58,985.44

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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.