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Finding the Fourth Proportional to 603,013.60, 904,520.40 and 159,781.60

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Solution

The fourth proportional to 603,013.60, 904,520.40 and 159,781.60 is: 239,672.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,013.60 : 904,520.40 = 159,781.60 : x
  2. Step 2: Convert to fraction form
    603,013.60/904,520.40 = 159,781.60/x
  3. Step 3: Cross multiply
    603,013.60x = 904,520.40 × 159,781.60
  4. Step 4: Simplify right side
    603,013.60x = 144,525,716,744.64
  5. Step 5: Solve for x
    x = 144,525,716,744.64/603,013.60
  6. Step 6: Final answer
    x = 239,672.40

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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.