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Finding the Fourth Proportional to 363,957,186.60, 545,935,779.90 and 118,313,346.60

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Solution

The fourth proportional to 363,957,186.60, 545,935,779.90 and 118,313,346.60 is: 177,470,019.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,957,186.60 : 545,935,779.90 = 118,313,346.60 : x
  2. Step 2: Convert to fraction form
    363,957,186.60/545,935,779.90 = 118,313,346.60/x
  3. Step 3: Cross multiply
    363,957,186.60x = 545,935,779.90 × 118,313,346.60
  4. Step 4: Simplify right side
    363,957,186.60x = 64,591,489,148,650,008
  5. Step 5: Solve for x
    x = 64,591,489,148,650,008/363,957,186.60
  6. Step 6: Final answer
    x = 177,470,019.90

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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.