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Finding the Fourth Proportional to 123,169.20, 184,710.60 and 63,985.20

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Solution

The fourth proportional to 123,169.20, 184,710.60 and 63,985.20 is: 95,955.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,169.20 : 184,710.60 = 63,985.20 : x
  2. Step 2: Convert to fraction form
    123,169.20/184,710.60 = 63,985.20/x
  3. Step 3: Cross multiply
    123,169.20x = 184,710.60 × 63,985.20
  4. Step 4: Simplify right side
    123,169.20x = 11,818,744,683.12
  5. Step 5: Solve for x
    x = 11,818,744,683.12/123,169.20
  6. Step 6: Final answer
    x = 95,955.36

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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.