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Finding the Fourth Proportional to 119,999.40, 179,739.90 and 104,447.40

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Solution

The fourth proportional to 119,999.40, 179,739.90 and 104,447.40 is: 156,445.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,999.40 : 179,739.90 = 104,447.40 : x
  2. Step 2: Convert to fraction form
    119,999.40/179,739.90 = 104,447.40/x
  3. Step 3: Cross multiply
    119,999.40x = 179,739.90 × 104,447.40
  4. Step 4: Simplify right side
    119,999.40x = 18,773,365,231.26
  5. Step 5: Solve for x
    x = 18,773,365,231.26/119,999.40
  6. Step 6: Final answer
    x = 156,445.49

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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.