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Finding the Fourth Proportional to 252,229.94, 348,079.74 and 139,056.74

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Solution

The fourth proportional to 252,229.94, 348,079.74 and 139,056.74 is: 191,899.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,229.94 : 348,079.74 = 139,056.74 : x
  2. Step 2: Convert to fraction form
    252,229.94/348,079.74 = 139,056.74/x
  3. Step 3: Cross multiply
    252,229.94x = 348,079.74 × 139,056.74
  4. Step 4: Simplify right side
    252,229.94x = 48,402,833,904.45
  5. Step 5: Solve for x
    x = 48,402,833,904.45/252,229.94
  6. Step 6: Final answer
    x = 191,899.64

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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.