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Finding the Fourth Proportional to 64,650,670.80, 89,219,815.68 and 35,283,889.14

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Solution

The fourth proportional to 64,650,670.80, 89,219,815.68 and 35,283,889.14 is: 48,692,798.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,650,670.80 : 89,219,815.68 = 35,283,889.14 : x
  2. Step 2: Convert to fraction form
    64,650,670.80/89,219,815.68 = 35,283,889.14/x
  3. Step 3: Cross multiply
    64,650,670.80x = 89,219,815.68 × 35,283,889.14
  4. Step 4: Simplify right side
    64,650,670.80x = 3,148,022,085,544,354
  5. Step 5: Solve for x
    x = 3,148,022,085,544,354/64,650,670.80
  6. Step 6: Final answer
    x = 48,692,798.49

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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.