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Finding the Fourth Proportional to 230,980.80, 346,298.40 and 125,918.40

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Solution

The fourth proportional to 230,980.80, 346,298.40 and 125,918.40 is: 188,783.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,980.80 : 346,298.40 = 125,918.40 : x
  2. Step 2: Convert to fraction form
    230,980.80/346,298.40 = 125,918.40/x
  3. Step 3: Cross multiply
    230,980.80x = 346,298.40 × 125,918.40
  4. Step 4: Simplify right side
    230,980.80x = 43,605,340,450.56
  5. Step 5: Solve for x
    x = 43,605,340,450.56/230,980.80
  6. Step 6: Final answer
    x = 188,783.40

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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.