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Finding the Fourth Proportional to 239,141.40, 358,712.10 and 201,087.60

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Solution

The fourth proportional to 239,141.40, 358,712.10 and 201,087.60 is: 301,631.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,141.40 : 358,712.10 = 201,087.60 : x
  2. Step 2: Convert to fraction form
    239,141.40/358,712.10 = 201,087.60/x
  3. Step 3: Cross multiply
    239,141.40x = 358,712.10 × 201,087.60
  4. Step 4: Simplify right side
    239,141.40x = 72,132,555,279.96
  5. Step 5: Solve for x
    x = 72,132,555,279.96/239,141.40
  6. Step 6: Final answer
    x = 301,631.40

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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.