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Finding the Fourth Proportional to 238,992.72, 358,365.54 and 70,491.60

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Solution

The fourth proportional to 238,992.72, 358,365.54 and 70,491.60 is: 105,700.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,992.72 : 358,365.54 = 70,491.60 : x
  2. Step 2: Convert to fraction form
    238,992.72/358,365.54 = 70,491.60/x
  3. Step 3: Cross multiply
    238,992.72x = 358,365.54 × 70,491.60
  4. Step 4: Simplify right side
    238,992.72x = 25,261,760,299.46
  5. Step 5: Solve for x
    x = 25,261,760,299.46/238,992.72
  6. Step 6: Final answer
    x = 105,700.96

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1.5x scale

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.