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Finding the Fourth Proportional to 3,742,258.50, 5,163,340.80 and 2,192,687.64

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Solution

The fourth proportional to 3,742,258.50, 5,163,340.80 and 2,192,687.64 is: 3,025,337.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,742,258.50 : 5,163,340.80 = 2,192,687.64 : x
  2. Step 2: Convert to fraction form
    3,742,258.50/5,163,340.80 = 2,192,687.64/x
  3. Step 3: Cross multiply
    3,742,258.50x = 5,163,340.80 × 2,192,687.64
  4. Step 4: Simplify right side
    3,742,258.50x = 11,321,593,553,267.71
  5. Step 5: Solve for x
    x = 11,321,593,553,267.71/3,742,258.50
  6. Step 6: Final answer
    x = 3,025,337.12

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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.