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Finding the Fourth Proportional to 93,633.88, 129,204.78 and 55,394.86

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Solution

The fourth proportional to 93,633.88, 129,204.78 and 55,394.86 is: 76,439.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,633.88 : 129,204.78 = 55,394.86 : x
  2. Step 2: Convert to fraction form
    93,633.88/129,204.78 = 55,394.86/x
  3. Step 3: Cross multiply
    93,633.88x = 129,204.78 × 55,394.86
  4. Step 4: Simplify right side
    93,633.88x = 7,157,280,699.43
  5. Step 5: Solve for x
    x = 7,157,280,699.43/93,633.88
  6. Step 6: Final answer
    x = 76,439.01

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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.