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Finding the Fourth Proportional to 72,296,188.76, 99,743,800.03 and 46,205,978.60

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Solution

The fourth proportional to 72,296,188.76, 99,743,800.03 and 46,205,978.60 is: 63,748,310.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,296,188.76 : 99,743,800.03 = 46,205,978.60 : x
  2. Step 2: Convert to fraction form
    72,296,188.76/99,743,800.03 = 46,205,978.60/x
  3. Step 3: Cross multiply
    72,296,188.76x = 99,743,800.03 × 46,205,978.60
  4. Step 4: Simplify right side
    72,296,188.76x = 4,608,759,889,802,704
  5. Step 5: Solve for x
    x = 4,608,759,889,802,704/72,296,188.76
  6. Step 6: Final answer
    x = 63,748,310.51

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.