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Finding the Fourth Proportional to 80,604.90, 112,963.50 and 80,604.90

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Solution

The fourth proportional to 80,604.90, 112,963.50 and 80,604.90 is: 112,963.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,604.90 : 112,963.50 = 80,604.90 : x
  2. Step 2: Convert to fraction form
    80,604.90/112,963.50 = 80,604.90/x
  3. Step 3: Cross multiply
    80,604.90x = 112,963.50 × 80,604.90
  4. Step 4: Simplify right side
    80,604.90x = 9,105,411,621.15
  5. Step 5: Solve for x
    x = 9,105,411,621.15/80,604.90
  6. Step 6: Final answer
    x = 112,963.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.