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Finding the Fourth Proportional to 252,451, 348,389.94 and 139,281.04

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Solution

The fourth proportional to 252,451, 348,389.94 and 139,281.04 is: 192,212.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,451 : 348,389.94 = 139,281.04 : x
  2. Step 2: Convert to fraction form
    252,451/348,389.94 = 139,281.04/x
  3. Step 3: Cross multiply
    252,451x = 348,389.94 × 139,281.04
  4. Step 4: Simplify right side
    252,451x = 48,524,113,168.74
  5. Step 5: Solve for x
    x = 48,524,113,168.74/252,451
  6. Step 6: Final answer
    x = 192,212.01

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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.