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Finding the Fourth Proportional to 166,558.40, 249,751.20 and 61,323.20

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Solution

The fourth proportional to 166,558.40, 249,751.20 and 61,323.20 is: 91,952.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,558.40 : 249,751.20 = 61,323.20 : x
  2. Step 2: Convert to fraction form
    166,558.40/249,751.20 = 61,323.20/x
  3. Step 3: Cross multiply
    166,558.40x = 249,751.20 × 61,323.20
  4. Step 4: Simplify right side
    166,558.40x = 15,315,542,787.84
  5. Step 5: Solve for x
    x = 15,315,542,787.84/166,558.40
  6. Step 6: Final answer
    x = 91,952.99

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.