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Finding the Fourth Proportional to 243,346.10, 365,014.83 and 124,947.86

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Solution

The fourth proportional to 243,346.10, 365,014.83 and 124,947.86 is: 187,419.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,346.10 : 365,014.83 = 124,947.86 : x
  2. Step 2: Convert to fraction form
    243,346.10/365,014.83 = 124,947.86/x
  3. Step 3: Cross multiply
    243,346.10x = 365,014.83 × 124,947.86
  4. Step 4: Simplify right side
    243,346.10x = 45,607,821,876.76
  5. Step 5: Solve for x
    x = 45,607,821,876.76/243,346.10
  6. Step 6: Final answer
    x = 187,419.57

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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.