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Finding the Fourth Proportional to 186,472.31, 257,350.37 and 113,871.20

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Solution

The fourth proportional to 186,472.31, 257,350.37 and 113,871.20 is: 157,153.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,472.31 : 257,350.37 = 113,871.20 : x
  2. Step 2: Convert to fraction form
    186,472.31/257,350.37 = 113,871.20/x
  3. Step 3: Cross multiply
    186,472.31x = 257,350.37 × 113,871.20
  4. Step 4: Simplify right side
    186,472.31x = 29,304,793,596.24
  5. Step 5: Solve for x
    x = 29,304,793,596.24/186,472.31
  6. Step 6: Final answer
    x = 157,153.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.