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Finding the Fourth Proportional to 238,423.69, 329,056.19 and 153,786.79

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Solution

The fourth proportional to 238,423.69, 329,056.19 and 153,786.79 is: 212,246.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,423.69 : 329,056.19 = 153,786.79 : x
  2. Step 2: Convert to fraction form
    238,423.69/329,056.19 = 153,786.79/x
  3. Step 3: Cross multiply
    238,423.69x = 329,056.19 × 153,786.79
  4. Step 4: Simplify right side
    238,423.69x = 50,604,495,189.73
  5. Step 5: Solve for x
    x = 50,604,495,189.73/238,423.69
  6. Step 6: Final answer
    x = 212,246.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.