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Finding the Fourth Proportional to 279,007.82, 385,035.18 and 151,683.92

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Solution

The fourth proportional to 279,007.82, 385,035.18 and 151,683.92 is: 209,326.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,007.82 : 385,035.18 = 151,683.92 : x
  2. Step 2: Convert to fraction form
    279,007.82/385,035.18 = 151,683.92/x
  3. Step 3: Cross multiply
    279,007.82x = 385,035.18 × 151,683.92
  4. Step 4: Simplify right side
    279,007.82x = 58,403,645,440.31
  5. Step 5: Solve for x
    x = 58,403,645,440.31/279,007.82
  6. Step 6: Final answer
    x = 209,326.20

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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.