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Finding the Fourth Proportional to 166,620.40, 249,930.60 and 127,254.40

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Solution

The fourth proportional to 166,620.40, 249,930.60 and 127,254.40 is: 190,881.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,620.40 : 249,930.60 = 127,254.40 : x
  2. Step 2: Convert to fraction form
    166,620.40/249,930.60 = 127,254.40/x
  3. Step 3: Cross multiply
    166,620.40x = 249,930.60 × 127,254.40
  4. Step 4: Simplify right side
    166,620.40x = 31,804,768,544.64
  5. Step 5: Solve for x
    x = 31,804,768,544.64/166,620.40
  6. Step 6: Final answer
    x = 190,881.60

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1.5x scale

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.