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Finding the Fourth Proportional to 254,873.36, 351,685.32 and 147,434.96

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Solution

The fourth proportional to 254,873.36, 351,685.32 and 147,434.96 is: 203,437.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,873.36 : 351,685.32 = 147,434.96 : x
  2. Step 2: Convert to fraction form
    254,873.36/351,685.32 = 147,434.96/x
  3. Step 3: Cross multiply
    254,873.36x = 351,685.32 × 147,434.96
  4. Step 4: Simplify right side
    254,873.36x = 51,850,711,086.79
  5. Step 5: Solve for x
    x = 51,850,711,086.79/254,873.36
  6. Step 6: Final answer
    x = 203,437.15

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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.