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Finding the Fourth Proportional to 77,793.30, 116,689.95 and 73,905.30

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Solution

The fourth proportional to 77,793.30, 116,689.95 and 73,905.30 is: 110,857.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,793.30 : 116,689.95 = 73,905.30 : x
  2. Step 2: Convert to fraction form
    77,793.30/116,689.95 = 73,905.30/x
  3. Step 3: Cross multiply
    77,793.30x = 116,689.95 × 73,905.30
  4. Step 4: Simplify right side
    77,793.30x = 8,624,005,761.74
  5. Step 5: Solve for x
    x = 8,624,005,761.74/77,793.30
  6. Step 6: Final answer
    x = 110,857.95

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1.5x scale

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.