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Finding the Fourth Proportional to 230,574.24, 318,189.60 and 129,972.24

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Solution

The fourth proportional to 230,574.24, 318,189.60 and 129,972.24 is: 179,360.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,574.24 : 318,189.60 = 129,972.24 : x
  2. Step 2: Convert to fraction form
    230,574.24/318,189.60 = 129,972.24/x
  3. Step 3: Cross multiply
    230,574.24x = 318,189.60 × 129,972.24
  4. Step 4: Simplify right side
    230,574.24x = 41,355,815,056.70
  5. Step 5: Solve for x
    x = 41,355,815,056.70/230,574.24
  6. Step 6: Final answer
    x = 179,360.08

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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.