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Finding the Fourth Proportional to 93,500.63, 129,040.20 and 55,774.88

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Solution

The fourth proportional to 93,500.63, 129,040.20 and 55,774.88 is: 76,974.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,500.63 : 129,040.20 = 55,774.88 : x
  2. Step 2: Convert to fraction form
    93,500.63/129,040.20 = 55,774.88/x
  3. Step 3: Cross multiply
    93,500.63x = 129,040.20 × 55,774.88
  4. Step 4: Simplify right side
    93,500.63x = 7,197,201,024.98
  5. Step 5: Solve for x
    x = 7,197,201,024.98/93,500.63
  6. Step 6: Final answer
    x = 76,974.90

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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.