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Finding the Fourth Proportional to 68,352.95, 94,315.75 and 45,655.54

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Solution

The fourth proportional to 68,352.95, 94,315.75 and 45,655.54 is: 62,997.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,352.95 : 94,315.75 = 45,655.54 : x
  2. Step 2: Convert to fraction form
    68,352.95/94,315.75 = 45,655.54/x
  3. Step 3: Cross multiply
    68,352.95x = 94,315.75 × 45,655.54
  4. Step 4: Simplify right side
    68,352.95x = 4,306,036,496.76
  5. Step 5: Solve for x
    x = 4,306,036,496.76/68,352.95
  6. Step 6: Final answer
    x = 62,997.08

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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.