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Finding the Fourth Proportional to 104,647.10, 156,970.65 and 100,564.70

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Solution

The fourth proportional to 104,647.10, 156,970.65 and 100,564.70 is: 150,847.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,647.10 : 156,970.65 = 100,564.70 : x
  2. Step 2: Convert to fraction form
    104,647.10/156,970.65 = 100,564.70/x
  3. Step 3: Cross multiply
    104,647.10x = 156,970.65 × 100,564.70
  4. Step 4: Simplify right side
    104,647.10x = 15,785,706,326.06
  5. Step 5: Solve for x
    x = 15,785,706,326.06/104,647.10
  6. Step 6: Final answer
    x = 150,847.05

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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.