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Finding the Fourth Proportional to 93,061, 128,424.24 and 52,761.88

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Solution

The fourth proportional to 93,061, 128,424.24 and 52,761.88 is: 72,811.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,061 : 128,424.24 = 52,761.88 : x
  2. Step 2: Convert to fraction form
    93,061/128,424.24 = 52,761.88/x
  3. Step 3: Cross multiply
    93,061x = 128,424.24 × 52,761.88
  4. Step 4: Simplify right side
    93,061x = 6,775,904,339.97
  5. Step 5: Solve for x
    x = 6,775,904,339.97/93,061
  6. Step 6: Final answer
    x = 72,811.43

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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.