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Finding the Fourth Proportional to 106,042.60, 159,063.90 and 104,487.40

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Solution

The fourth proportional to 106,042.60, 159,063.90 and 104,487.40 is: 156,731.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,042.60 : 159,063.90 = 104,487.40 : x
  2. Step 2: Convert to fraction form
    106,042.60/159,063.90 = 104,487.40/x
  3. Step 3: Cross multiply
    106,042.60x = 159,063.90 × 104,487.40
  4. Step 4: Simplify right side
    106,042.60x = 16,620,173,344.86
  5. Step 5: Solve for x
    x = 16,620,173,344.86/106,042.60
  6. Step 6: Final answer
    x = 156,731.10

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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.