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Finding the Fourth Proportional to 99,063.67, 148,600.21 and 31,602.87

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Solution

The fourth proportional to 99,063.67, 148,600.21 and 31,602.87 is: 47,405.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,063.67 : 148,600.21 = 31,602.87 : x
  2. Step 2: Convert to fraction form
    99,063.67/148,600.21 = 31,602.87/x
  3. Step 3: Cross multiply
    99,063.67x = 148,600.21 × 31,602.87
  4. Step 4: Simplify right side
    99,063.67x = 4,696,192,217.59
  5. Step 5: Solve for x
    x = 4,696,192,217.59/99,063.67
  6. Step 6: Final answer
    x = 47,405.80

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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.