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Finding the Fourth Proportional to 123,148.92, 184,684.50 and 53,009.40

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Solution

The fourth proportional to 123,148.92, 184,684.50 and 53,009.40 is: 79,497.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,148.92 : 184,684.50 = 53,009.40 : x
  2. Step 2: Convert to fraction form
    123,148.92/184,684.50 = 53,009.40/x
  3. Step 3: Cross multiply
    123,148.92x = 184,684.50 × 53,009.40
  4. Step 4: Simplify right side
    123,148.92x = 9,790,014,534.30
  5. Step 5: Solve for x
    x = 9,790,014,534.30/123,148.92
  6. Step 6: Final answer
    x = 79,497.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.