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Finding the Fourth Proportional to 78,891.90, 108,871.43 and 44,903.00

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Solution

The fourth proportional to 78,891.90, 108,871.43 and 44,903.00 is: 61,966.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,891.90 : 108,871.43 = 44,903.00 : x
  2. Step 2: Convert to fraction form
    78,891.90/108,871.43 = 44,903.00/x
  3. Step 3: Cross multiply
    78,891.90x = 108,871.43 × 44,903.00
  4. Step 4: Simplify right side
    78,891.90x = 4,888,653,052.42
  5. Step 5: Solve for x
    x = 4,888,653,052.42/78,891.90
  6. Step 6: Final answer
    x = 61,966.48

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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.