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Finding the Fourth Proportional to 281,366.68, 388,295.49 and 154,044.94

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Solution

The fourth proportional to 281,366.68, 388,295.49 and 154,044.94 is: 212,587.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,366.68 : 388,295.49 = 154,044.94 : x
  2. Step 2: Convert to fraction form
    281,366.68/388,295.49 = 154,044.94/x
  3. Step 3: Cross multiply
    281,366.68x = 388,295.49 × 154,044.94
  4. Step 4: Simplify right side
    281,366.68x = 59,814,955,459.32
  5. Step 5: Solve for x
    x = 59,814,955,459.32/281,366.68
  6. Step 6: Final answer
    x = 212,587.20

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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.