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Finding the Fourth Proportional to 185,293.97, 255,606.87 and 112,719.05

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Solution

The fourth proportional to 185,293.97, 255,606.87 and 112,719.05 is: 155,492.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,293.97 : 255,606.87 = 112,719.05 : x
  2. Step 2: Convert to fraction form
    185,293.97/255,606.87 = 112,719.05/x
  3. Step 3: Cross multiply
    185,293.97x = 255,606.87 × 112,719.05
  4. Step 4: Simplify right side
    185,293.97x = 28,811,763,559.87
  5. Step 5: Solve for x
    x = 28,811,763,559.87/185,293.97
  6. Step 6: Final answer
    x = 155,492.18

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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.