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Finding the Fourth Proportional to 286,251.80, 429,377.70 and 168,056.60

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Solution

The fourth proportional to 286,251.80, 429,377.70 and 168,056.60 is: 252,084.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,251.80 : 429,377.70 = 168,056.60 : x
  2. Step 2: Convert to fraction form
    286,251.80/429,377.70 = 168,056.60/x
  3. Step 3: Cross multiply
    286,251.80x = 429,377.70 × 168,056.60
  4. Step 4: Simplify right side
    286,251.80x = 72,159,756,377.82
  5. Step 5: Solve for x
    x = 72,159,756,377.82/286,251.80
  6. Step 6: Final answer
    x = 252,084.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.