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Finding the Fourth Proportional to 166,901, 249,435.19 and 122,016.86

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Solution

The fourth proportional to 166,901, 249,435.19 and 122,016.86 is: 182,355.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,901 : 249,435.19 = 122,016.86 : x
  2. Step 2: Convert to fraction form
    166,901/249,435.19 = 122,016.86/x
  3. Step 3: Cross multiply
    166,901x = 249,435.19 × 122,016.86
  4. Step 4: Simplify right side
    166,901x = 30,435,298,657.30
  5. Step 5: Solve for x
    x = 30,435,298,657.30/166,901
  6. Step 6: Final answer
    x = 182,355.40

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.