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Finding the Fourth Proportional to 123,933.60, 185,695.60 and 105,501.60

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Solution

The fourth proportional to 123,933.60, 185,695.60 and 105,501.60 is: 158,078.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,933.60 : 185,695.60 = 105,501.60 : x
  2. Step 2: Convert to fraction form
    123,933.60/185,695.60 = 105,501.60/x
  3. Step 3: Cross multiply
    123,933.60x = 185,695.60 × 105,501.60
  4. Step 4: Simplify right side
    123,933.60x = 19,591,182,912.96
  5. Step 5: Solve for x
    x = 19,591,182,912.96/123,933.60
  6. Step 6: Final answer
    x = 158,078.06

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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.