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Finding the Fourth Proportional to 186,422.28, 257,180.90 and 125,970.90

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Solution

The fourth proportional to 186,422.28, 257,180.90 and 125,970.90 is: 173,784.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,422.28 : 257,180.90 = 125,970.90 : x
  2. Step 2: Convert to fraction form
    186,422.28/257,180.90 = 125,970.90/x
  3. Step 3: Cross multiply
    186,422.28x = 257,180.90 × 125,970.90
  4. Step 4: Simplify right side
    186,422.28x = 32,397,308,805.96
  5. Step 5: Solve for x
    x = 32,397,308,805.96/186,422.28
  6. Step 6: Final answer
    x = 173,784.53

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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.