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Finding the Fourth Proportional to 166,352.70, 249,529.05 and 91,443.90

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Solution

The fourth proportional to 166,352.70, 249,529.05 and 91,443.90 is: 137,165.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,352.70 : 249,529.05 = 91,443.90 : x
  2. Step 2: Convert to fraction form
    166,352.70/249,529.05 = 91,443.90/x
  3. Step 3: Cross multiply
    166,352.70x = 249,529.05 × 91,443.90
  4. Step 4: Simplify right side
    166,352.70x = 22,817,909,495.30
  5. Step 5: Solve for x
    x = 22,817,909,495.30/166,352.70
  6. Step 6: Final answer
    x = 137,165.85

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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.