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Finding the Fourth Proportional to 252,230.07, 348,079.87 and 139,056.87

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Solution

The fourth proportional to 252,230.07, 348,079.87 and 139,056.87 is: 191,899.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,230.07 : 348,079.87 = 139,056.87 : x
  2. Step 2: Convert to fraction form
    252,230.07/348,079.87 = 139,056.87/x
  3. Step 3: Cross multiply
    252,230.07x = 348,079.87 × 139,056.87
  4. Step 4: Simplify right side
    252,230.07x = 48,402,897,232.21
  5. Step 5: Solve for x
    x = 48,402,897,232.21/252,230.07
  6. Step 6: Final answer
    x = 191,899.79

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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.