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Finding the Fourth Proportional to 166,503.70, 249,755.55 and 124,513.30

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Solution

The fourth proportional to 166,503.70, 249,755.55 and 124,513.30 is: 186,769.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,503.70 : 249,755.55 = 124,513.30 : x
  2. Step 2: Convert to fraction form
    166,503.70/249,755.55 = 124,513.30/x
  3. Step 3: Cross multiply
    166,503.70x = 249,755.55 × 124,513.30
  4. Step 4: Simplify right side
    166,503.70x = 31,097,887,723.82
  5. Step 5: Solve for x
    x = 31,097,887,723.82/166,503.70
  6. Step 6: Final answer
    x = 186,769.95

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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.