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Finding the Fourth Proportional to 93,630.87, 129,208.14 and 55,392.39

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Solution

The fourth proportional to 93,630.87, 129,208.14 and 55,392.39 is: 76,440.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,630.87 : 129,208.14 = 55,392.39 : x
  2. Step 2: Convert to fraction form
    93,630.87/129,208.14 = 55,392.39/x
  3. Step 3: Cross multiply
    93,630.87x = 129,208.14 × 55,392.39
  4. Step 4: Simplify right side
    93,630.87x = 7,157,147,682.05
  5. Step 5: Solve for x
    x = 7,157,147,682.05/93,630.87
  6. Step 6: Final answer
    x = 76,440.04

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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.