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Finding the Fourth Proportional to 272,652,208.80, 408,978,313.20 and 157,577,517.60

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Solution

The fourth proportional to 272,652,208.80, 408,978,313.20 and 157,577,517.60 is: 236,366,276.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,652,208.80 : 408,978,313.20 = 157,577,517.60 : x
  2. Step 2: Convert to fraction form
    272,652,208.80/408,978,313.20 = 157,577,517.60/x
  3. Step 3: Cross multiply
    272,652,208.80x = 408,978,313.20 × 157,577,517.60
  4. Step 4: Simplify right side
    272,652,208.80x = 64,445,787,346,291,312
  5. Step 5: Solve for x
    x = 64,445,787,346,291,312/272,652,208.80
  6. Step 6: Final answer
    x = 236,366,276.40

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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.