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Finding the Fourth Proportional to 166,447.40, 249,938.40 and 154,167.80

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Solution

The fourth proportional to 166,447.40, 249,938.40 and 154,167.80 is: 231,499.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,447.40 : 249,938.40 = 154,167.80 : x
  2. Step 2: Convert to fraction form
    166,447.40/249,938.40 = 154,167.80/x
  3. Step 3: Cross multiply
    166,447.40x = 249,938.40 × 154,167.80
  4. Step 4: Simplify right side
    166,447.40x = 38,532,453,263.52
  5. Step 5: Solve for x
    x = 38,532,453,263.52/166,447.40
  6. Step 6: Final answer
    x = 231,499.28

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