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Finding the Fourth Proportional to 281,818.79, 388,901.88 and 160,957.58

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Solution

The fourth proportional to 281,818.79, 388,901.88 and 160,957.58 is: 222,116.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,818.79 : 388,901.88 = 160,957.58 : x
  2. Step 2: Convert to fraction form
    281,818.79/388,901.88 = 160,957.58/x
  3. Step 3: Cross multiply
    281,818.79x = 388,901.88 × 160,957.58
  4. Step 4: Simplify right side
    281,818.79x = 62,596,703,517.74
  5. Step 5: Solve for x
    x = 62,596,703,517.74/281,818.79
  6. Step 6: Final answer
    x = 222,116.86

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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.