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Finding the Fourth Proportional to 251,641.60, 347,225.76 and 144,190.96

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Solution

The fourth proportional to 251,641.60, 347,225.76 and 144,190.96 is: 198,960.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,641.60 : 347,225.76 = 144,190.96 : x
  2. Step 2: Convert to fraction form
    251,641.60/347,225.76 = 144,190.96/x
  3. Step 3: Cross multiply
    251,641.60x = 347,225.76 × 144,190.96
  4. Step 4: Simplify right side
    251,641.60x = 50,066,815,671.13
  5. Step 5: Solve for x
    x = 50,066,815,671.13/251,641.60
  6. Step 6: Final answer
    x = 198,960.81

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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.