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Finding the Fourth Proportional to 238,905.50, 358,358.22 and 61,412.67

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Solution

The fourth proportional to 238,905.50, 358,358.22 and 61,412.67 is: 92,119.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,905.50 : 358,358.22 = 61,412.67 : x
  2. Step 2: Convert to fraction form
    238,905.50/358,358.22 = 61,412.67/x
  3. Step 3: Cross multiply
    238,905.50x = 358,358.22 × 61,412.67
  4. Step 4: Simplify right side
    238,905.50x = 22,007,735,106.65
  5. Step 5: Solve for x
    x = 22,007,735,106.65/238,905.50
  6. Step 6: Final answer
    x = 92,119.00

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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.