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Finding the Fourth Proportional to 124,485.46, 186,632.47 and 64,449.58

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Solution

The fourth proportional to 124,485.46, 186,632.47 and 64,449.58 is: 96,624.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,485.46 : 186,632.47 = 64,449.58 : x
  2. Step 2: Convert to fraction form
    124,485.46/186,632.47 = 64,449.58/x
  3. Step 3: Cross multiply
    124,485.46x = 186,632.47 × 64,449.58
  4. Step 4: Simplify right side
    124,485.46x = 12,028,384,305.86
  5. Step 5: Solve for x
    x = 12,028,384,305.86/124,485.46
  6. Step 6: Final answer
    x = 96,624.81

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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.