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Finding the Fourth Proportional to 501,690.50, 752,532.81 and 122,613.23

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Solution

The fourth proportional to 501,690.50, 752,532.81 and 122,613.23 is: 183,919.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,690.50 : 752,532.81 = 122,613.23 : x
  2. Step 2: Convert to fraction form
    501,690.50/752,532.81 = 122,613.23/x
  3. Step 3: Cross multiply
    501,690.50x = 752,532.81 × 122,613.23
  4. Step 4: Simplify right side
    501,690.50x = 92,270,478,515.08
  5. Step 5: Solve for x
    x = 92,270,478,515.08/501,690.50
  6. Step 6: Final answer
    x = 183,919.13

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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.