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Finding the Fourth Proportional to 229,856.80, 317,240.12 and 134,344.84

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Solution

The fourth proportional to 229,856.80, 317,240.12 and 134,344.84 is: 185,417.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,856.80 : 317,240.12 = 134,344.84 : x
  2. Step 2: Convert to fraction form
    229,856.80/317,240.12 = 134,344.84/x
  3. Step 3: Cross multiply
    229,856.80x = 317,240.12 × 134,344.84
  4. Step 4: Simplify right side
    229,856.80x = 42,619,573,162.98
  5. Step 5: Solve for x
    x = 42,619,573,162.98/229,856.80
  6. Step 6: Final answer
    x = 185,417.93

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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.