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Finding the Fourth Proportional to 75,250.49, 103,848.86 and 45,029.95

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Solution

The fourth proportional to 75,250.49, 103,848.86 and 45,029.95 is: 62,143.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,250.49 : 103,848.86 = 45,029.95 : x
  2. Step 2: Convert to fraction form
    75,250.49/103,848.86 = 45,029.95/x
  3. Step 3: Cross multiply
    75,250.49x = 103,848.86 × 45,029.95
  4. Step 4: Simplify right side
    75,250.49x = 4,676,308,991.74
  5. Step 5: Solve for x
    x = 4,676,308,991.74/75,250.49
  6. Step 6: Final answer
    x = 62,143.23

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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.