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Finding the Fourth Proportional to 166,212.70, 249,312.65 and 55,404.70

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Solution

The fourth proportional to 166,212.70, 249,312.65 and 55,404.70 is: 83,104.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,212.70 : 249,312.65 = 55,404.70 : x
  2. Step 2: Convert to fraction form
    166,212.70/249,312.65 = 55,404.70/x
  3. Step 3: Cross multiply
    166,212.70x = 249,312.65 × 55,404.70
  4. Step 4: Simplify right side
    166,212.70x = 13,813,092,579.46
  5. Step 5: Solve for x
    x = 13,813,092,579.46/166,212.70
  6. Step 6: Final answer
    x = 83,104.92

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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.