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Finding the Fourth Proportional to 186,360.70, 257,170.74 and 113,884.78

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Solution

The fourth proportional to 186,360.70, 257,170.74 and 113,884.78 is: 157,156.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,360.70 : 257,170.74 = 113,884.78 : x
  2. Step 2: Convert to fraction form
    186,360.70/257,170.74 = 113,884.78/x
  3. Step 3: Cross multiply
    186,360.70x = 257,170.74 × 113,884.78
  4. Step 4: Simplify right side
    186,360.70x = 29,287,833,147.34
  5. Step 5: Solve for x
    x = 29,287,833,147.34/186,360.70
  6. Step 6: Final answer
    x = 157,156.70

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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.