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Finding the Fourth Proportional to 229,758.84, 317,065.43 and 126,390.81

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Solution

The fourth proportional to 229,758.84, 317,065.43 and 126,390.81 is: 174,418.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,758.84 : 317,065.43 = 126,390.81 : x
  2. Step 2: Convert to fraction form
    229,758.84/317,065.43 = 126,390.81/x
  3. Step 3: Cross multiply
    229,758.84x = 317,065.43 × 126,390.81
  4. Step 4: Simplify right side
    229,758.84x = 40,074,158,025.67
  5. Step 5: Solve for x
    x = 40,074,158,025.67/229,758.84
  6. Step 6: Final answer
    x = 174,418.35

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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.