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Finding the Fourth Proportional to 93,042, 128,397.96 and 50,601.44

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Solution

The fourth proportional to 93,042, 128,397.96 and 50,601.44 is: 69,829.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,042 : 128,397.96 = 50,601.44 : x
  2. Step 2: Convert to fraction form
    93,042/128,397.96 = 50,601.44/x
  3. Step 3: Cross multiply
    93,042x = 128,397.96 × 50,601.44
  4. Step 4: Simplify right side
    93,042x = 6,497,121,990.06
  5. Step 5: Solve for x
    x = 6,497,121,990.06/93,042
  6. Step 6: Final answer
    x = 69,829.99

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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.