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Finding the Fourth Proportional to 432,904.80, 649,357.20 and 117,361.20

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Solution

The fourth proportional to 432,904.80, 649,357.20 and 117,361.20 is: 176,041.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,904.80 : 649,357.20 = 117,361.20 : x
  2. Step 2: Convert to fraction form
    432,904.80/649,357.20 = 117,361.20/x
  3. Step 3: Cross multiply
    432,904.80x = 649,357.20 × 117,361.20
  4. Step 4: Simplify right side
    432,904.80x = 76,209,340,220.64
  5. Step 5: Solve for x
    x = 76,209,340,220.64/432,904.80
  6. Step 6: Final answer
    x = 176,041.80

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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.