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Finding the Fourth Proportional to 201,618.70, 302,428.05 and 154,962.70

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Solution

The fourth proportional to 201,618.70, 302,428.05 and 154,962.70 is: 232,444.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,618.70 : 302,428.05 = 154,962.70 : x
  2. Step 2: Convert to fraction form
    201,618.70/302,428.05 = 154,962.70/x
  3. Step 3: Cross multiply
    201,618.70x = 302,428.05 × 154,962.70
  4. Step 4: Simplify right side
    201,618.70x = 46,865,067,183.74
  5. Step 5: Solve for x
    x = 46,865,067,183.74/201,618.70
  6. Step 6: Final answer
    x = 232,444.05

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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.