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Finding the Fourth Proportional to 256,636.10, 354,160.10 and 141,922.50

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Solution

The fourth proportional to 256,636.10, 354,160.10 and 141,922.50 is: 195,854.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,636.10 : 354,160.10 = 141,922.50 : x
  2. Step 2: Convert to fraction form
    256,636.10/354,160.10 = 141,922.50/x
  3. Step 3: Cross multiply
    256,636.10x = 354,160.10 × 141,922.50
  4. Step 4: Simplify right side
    256,636.10x = 50,263,286,792.25
  5. Step 5: Solve for x
    x = 50,263,286,792.25/256,636.10
  6. Step 6: Final answer
    x = 195,854.31

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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.