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Finding the Fourth Proportional to 252,792.81, 348,851.93 and 139,613.13

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Solution

The fourth proportional to 252,792.81, 348,851.93 and 139,613.13 is: 192,664.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,792.81 : 348,851.93 = 139,613.13 : x
  2. Step 2: Convert to fraction form
    252,792.81/348,851.93 = 139,613.13/x
  3. Step 3: Cross multiply
    252,792.81x = 348,851.93 × 139,613.13
  4. Step 4: Simplify right side
    252,792.81x = 48,704,309,853.84
  5. Step 5: Solve for x
    x = 48,704,309,853.84/252,792.81
  6. Step 6: Final answer
    x = 192,664.93

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.