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Finding the Fourth Proportional to 162,709.20, 224,551.15 and 93,809.88

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Solution

The fourth proportional to 162,709.20, 224,551.15 and 93,809.88 is: 129,464.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,709.20 : 224,551.15 = 93,809.88 : x
  2. Step 2: Convert to fraction form
    162,709.20/224,551.15 = 93,809.88/x
  3. Step 3: Cross multiply
    162,709.20x = 224,551.15 × 93,809.88
  4. Step 4: Simplify right side
    162,709.20x = 21,065,116,200.84
  5. Step 5: Solve for x
    x = 21,065,116,200.84/162,709.20
  6. Step 6: Final answer
    x = 129,464.81

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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.