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Finding the Fourth Proportional to 57,959,969.04, 86,955,633.54 and 19,621,486.44

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Solution

The fourth proportional to 57,959,969.04, 86,955,633.54 and 19,621,486.44 is: 29,437,537.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,959,969.04 : 86,955,633.54 = 19,621,486.44 : x
  2. Step 2: Convert to fraction form
    57,959,969.04/86,955,633.54 = 19,621,486.44/x
  3. Step 3: Cross multiply
    57,959,969.04x = 86,955,633.54 × 19,621,486.44
  4. Step 4: Simplify right side
    57,959,969.04x = 1,706,198,784,386,719.50
  5. Step 5: Solve for x
    x = 1,706,198,784,386,719.50/57,959,969.04
  6. Step 6: Final answer
    x = 29,437,537.88

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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.