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Finding the Fourth Proportional to 255,181.40, 352,147.56 and 140,457.56

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Solution

The fourth proportional to 255,181.40, 352,147.56 and 140,457.56 is: 193,829.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,181.40 : 352,147.56 = 140,457.56 : x
  2. Step 2: Convert to fraction form
    255,181.40/352,147.56 = 140,457.56/x
  3. Step 3: Cross multiply
    255,181.40x = 352,147.56 × 140,457.56
  4. Step 4: Simplify right side
    255,181.40x = 49,461,787,037.55
  5. Step 5: Solve for x
    x = 49,461,787,037.55/255,181.40
  6. Step 6: Final answer
    x = 193,829.91

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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.