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Finding the Fourth Proportional to 124,645.68, 186,857.16 and 45,741.60

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Solution

The fourth proportional to 124,645.68, 186,857.16 and 45,741.60 is: 68,571.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,645.68 : 186,857.16 = 45,741.60 : x
  2. Step 2: Convert to fraction form
    124,645.68/186,857.16 = 45,741.60/x
  3. Step 3: Cross multiply
    124,645.68x = 186,857.16 × 45,741.60
  4. Step 4: Simplify right side
    124,645.68x = 8,547,145,469.86
  5. Step 5: Solve for x
    x = 8,547,145,469.86/124,645.68
  6. Step 6: Final answer
    x = 68,571.53

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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.