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Finding the Fourth Proportional to 286,448.70, 429,848.55 and 118,049.70

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Solution

The fourth proportional to 286,448.70, 429,848.55 and 118,049.70 is: 177,146.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,448.70 : 429,848.55 = 118,049.70 : x
  2. Step 2: Convert to fraction form
    286,448.70/429,848.55 = 118,049.70/x
  3. Step 3: Cross multiply
    286,448.70x = 429,848.55 × 118,049.70
  4. Step 4: Simplify right side
    286,448.70x = 50,743,492,372.94
  5. Step 5: Solve for x
    x = 50,743,492,372.94/286,448.70
  6. Step 6: Final answer
    x = 177,146.88

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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.