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Finding the Fourth Proportional to 355,995.28, 534,080.42 and 106,677.28

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Solution

The fourth proportional to 355,995.28, 534,080.42 and 106,677.28 is: 160,042.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,995.28 : 534,080.42 = 106,677.28 : x
  2. Step 2: Convert to fraction form
    355,995.28/534,080.42 = 106,677.28/x
  3. Step 3: Cross multiply
    355,995.28x = 534,080.42 × 106,677.28
  4. Step 4: Simplify right side
    355,995.28x = 56,974,247,041.11
  5. Step 5: Solve for x
    x = 56,974,247,041.11/355,995.28
  6. Step 6: Final answer
    x = 160,042.14

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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.