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Finding the Fourth Proportional to 45,418.95, 68,139.95 and 29,866.95

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Solution

The fourth proportional to 45,418.95, 68,139.95 and 29,866.95 is: 44,808.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,418.95 : 68,139.95 = 29,866.95 : x
  2. Step 2: Convert to fraction form
    45,418.95/68,139.95 = 29,866.95/x
  3. Step 3: Cross multiply
    45,418.95x = 68,139.95 × 29,866.95
  4. Step 4: Simplify right side
    45,418.95x = 2,035,132,330.32
  5. Step 5: Solve for x
    x = 2,035,132,330.32/45,418.95
  6. Step 6: Final answer
    x = 44,808.00

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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.