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Finding the Fourth Proportional to 348,402.20, 522,603.30 and 99,051.80

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Solution

The fourth proportional to 348,402.20, 522,603.30 and 99,051.80 is: 148,577.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,402.20 : 522,603.30 = 99,051.80 : x
  2. Step 2: Convert to fraction form
    348,402.20/522,603.30 = 99,051.80/x
  3. Step 3: Cross multiply
    348,402.20x = 522,603.30 × 99,051.80
  4. Step 4: Simplify right side
    348,402.20x = 51,764,797,550.94
  5. Step 5: Solve for x
    x = 51,764,797,550.94/348,402.20
  6. Step 6: Final answer
    x = 148,577.70

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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.