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Finding the Fourth Proportional to 64,368,981.60, 96,665,446.80 and 34,135,893.60

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Solution

The fourth proportional to 64,368,981.60, 96,665,446.80 and 34,135,893.60 is: 51,263,222.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,368,981.60 : 96,665,446.80 = 34,135,893.60 : x
  2. Step 2: Convert to fraction form
    64,368,981.60/96,665,446.80 = 34,135,893.60/x
  3. Step 3: Cross multiply
    64,368,981.60x = 96,665,446.80 × 34,135,893.60
  4. Step 4: Simplify right side
    64,368,981.60x = 3,299,761,406,761,260.50
  5. Step 5: Solve for x
    x = 3,299,761,406,761,260.50/64,368,981.60
  6. Step 6: Final answer
    x = 51,263,222.20

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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.