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Finding the Fourth Proportional to 162,628.57, 224,436.81 and 91,007.95

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Solution

The fourth proportional to 162,628.57, 224,436.81 and 91,007.95 is: 125,596.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,628.57 : 224,436.81 = 91,007.95 : x
  2. Step 2: Convert to fraction form
    162,628.57/224,436.81 = 91,007.95/x
  3. Step 3: Cross multiply
    162,628.57x = 224,436.81 × 91,007.95
  4. Step 4: Simplify right side
    162,628.57x = 20,425,533,982.64
  5. Step 5: Solve for x
    x = 20,425,533,982.64/162,628.57
  6. Step 6: Final answer
    x = 125,596.22

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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.