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Finding the Fourth Proportional to 163,324,984.60, 244,987,476.90 and 72,448,573.60

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Solution

The fourth proportional to 163,324,984.60, 244,987,476.90 and 72,448,573.60 is: 108,672,860.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,324,984.60 : 244,987,476.90 = 72,448,573.60 : x
  2. Step 2: Convert to fraction form
    163,324,984.60/244,987,476.90 = 72,448,573.60/x
  3. Step 3: Cross multiply
    163,324,984.60x = 244,987,476.90 × 72,448,573.60
  4. Step 4: Simplify right side
    163,324,984.60x = 17,748,993,251,267,948
  5. Step 5: Solve for x
    x = 17,748,993,251,267,948/163,324,984.60
  6. Step 6: Final answer
    x = 108,672,860.40

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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.