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Finding the Fourth Proportional to 93,745.30, 129,348.48 and 55,516.86

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Solution

The fourth proportional to 93,745.30, 129,348.48 and 55,516.86 is: 76,601.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,745.30 : 129,348.48 = 55,516.86 : x
  2. Step 2: Convert to fraction form
    93,745.30/129,348.48 = 55,516.86/x
  3. Step 3: Cross multiply
    93,745.30x = 129,348.48 × 55,516.86
  4. Step 4: Simplify right side
    93,745.30x = 7,181,021,455.37
  5. Step 5: Solve for x
    x = 7,181,021,455.37/93,745.30
  6. Step 6: Final answer
    x = 76,601.40

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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.