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Finding the Fourth Proportional to 186,170.63, 256,915.46 and 101,288.30

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Solution

The fourth proportional to 186,170.63, 256,915.46 and 101,288.30 is: 139,777.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,170.63 : 256,915.46 = 101,288.30 : x
  2. Step 2: Convert to fraction form
    186,170.63/256,915.46 = 101,288.30/x
  3. Step 3: Cross multiply
    186,170.63x = 256,915.46 × 101,288.30
  4. Step 4: Simplify right side
    186,170.63x = 26,022,529,155.76
  5. Step 5: Solve for x
    x = 26,022,529,155.76/186,170.63
  6. Step 6: Final answer
    x = 139,777.85

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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.