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Finding the Fourth Proportional to 243,606.20, 365,117.70 and 125,216.60

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Solution

The fourth proportional to 243,606.20, 365,117.70 and 125,216.60 is: 187,675.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,606.20 : 365,117.70 = 125,216.60 : x
  2. Step 2: Convert to fraction form
    243,606.20/365,117.70 = 125,216.60/x
  3. Step 3: Cross multiply
    243,606.20x = 365,117.70 × 125,216.60
  4. Step 4: Simplify right side
    243,606.20x = 45,718,796,993.82
  5. Step 5: Solve for x
    x = 45,718,796,993.82/243,606.20
  6. Step 6: Final answer
    x = 187,675.01

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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.