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Finding the Fourth Proportional to 125,896.64, 173,737.92 and 72,184.80

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Solution

The fourth proportional to 125,896.64, 173,737.92 and 72,184.80 is: 99,615.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,896.64 : 173,737.92 = 72,184.80 : x
  2. Step 2: Convert to fraction form
    125,896.64/173,737.92 = 72,184.80/x
  3. Step 3: Cross multiply
    125,896.64x = 173,737.92 × 72,184.80
  4. Step 4: Simplify right side
    125,896.64x = 12,541,237,007.62
  5. Step 5: Solve for x
    x = 12,541,237,007.62/125,896.64
  6. Step 6: Final answer
    x = 99,615.34

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1.5x scale

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.