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Finding the Fourth Proportional to 279,026.84, 385,059.74 and 151,705.14

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Solution

The fourth proportional to 279,026.84, 385,059.74 and 151,705.14 is: 209,354.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,026.84 : 385,059.74 = 151,705.14 : x
  2. Step 2: Convert to fraction form
    279,026.84/385,059.74 = 151,705.14/x
  3. Step 3: Cross multiply
    279,026.84x = 385,059.74 × 151,705.14
  4. Step 4: Simplify right side
    279,026.84x = 58,415,541,006.54
  5. Step 5: Solve for x
    x = 58,415,541,006.54/279,026.84
  6. Step 6: Final answer
    x = 209,354.56

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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.