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Finding the Fourth Proportional to 94,455.72, 141,738.93 and 67,772.95

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Solution

The fourth proportional to 94,455.72, 141,738.93 and 67,772.95 is: 101,699.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,455.72 : 141,738.93 = 67,772.95 : x
  2. Step 2: Convert to fraction form
    94,455.72/141,738.93 = 67,772.95/x
  3. Step 3: Cross multiply
    94,455.72x = 141,738.93 × 67,772.95
  4. Step 4: Simplify right side
    94,455.72x = 9,606,065,415.94
  5. Step 5: Solve for x
    x = 9,606,065,415.94/94,455.72
  6. Step 6: Final answer
    x = 101,699.14

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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.