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Finding the Fourth Proportional to 249,849.60, 374,644.80 and 91,996.80

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Solution

The fourth proportional to 249,849.60, 374,644.80 and 91,996.80 is: 137,947.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,849.60 : 374,644.80 = 91,996.80 : x
  2. Step 2: Convert to fraction form
    249,849.60/374,644.80 = 91,996.80/x
  3. Step 3: Cross multiply
    249,849.60x = 374,644.80 × 91,996.80
  4. Step 4: Simplify right side
    249,849.60x = 34,466,122,736.64
  5. Step 5: Solve for x
    x = 34,466,122,736.64/249,849.60
  6. Step 6: Final answer
    x = 137,947.48

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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.