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Finding the Fourth Proportional to 445,653.72, 668,433.02 and 125,797.72

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Solution

The fourth proportional to 445,653.72, 668,433.02 and 125,797.72 is: 188,683.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,653.72 : 668,433.02 = 125,797.72 : x
  2. Step 2: Convert to fraction form
    445,653.72/668,433.02 = 125,797.72/x
  3. Step 3: Cross multiply
    445,653.72x = 668,433.02 × 125,797.72
  4. Step 4: Simplify right side
    445,653.72x = 84,087,349,888.71
  5. Step 5: Solve for x
    x = 84,087,349,888.71/445,653.72
  6. Step 6: Final answer
    x = 188,683.15

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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.