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Finding the Fourth Proportional to 243,947.80, 365,921.70 and 125,849.80

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Solution

The fourth proportional to 243,947.80, 365,921.70 and 125,849.80 is: 188,774.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,947.80 : 365,921.70 = 125,849.80 : x
  2. Step 2: Convert to fraction form
    243,947.80/365,921.70 = 125,849.80/x
  3. Step 3: Cross multiply
    243,947.80x = 365,921.70 × 125,849.80
  4. Step 4: Simplify right side
    243,947.80x = 46,051,172,760.66
  5. Step 5: Solve for x
    x = 46,051,172,760.66/243,947.80
  6. Step 6: Final answer
    x = 188,774.70

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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.