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Finding the Fourth Proportional to 279,139.44, 385,088.07 and 186,026.07

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Solution

The fourth proportional to 279,139.44, 385,088.07 and 186,026.07 is: 256,633.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,139.44 : 385,088.07 = 186,026.07 : x
  2. Step 2: Convert to fraction form
    279,139.44/385,088.07 = 186,026.07/x
  3. Step 3: Cross multiply
    279,139.44x = 385,088.07 × 186,026.07
  4. Step 4: Simplify right side
    279,139.44x = 71,636,420,265.98
  5. Step 5: Solve for x
    x = 71,636,420,265.98/279,139.44
  6. Step 6: Final answer
    x = 256,633.10

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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.