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Finding the Fourth Proportional to 238,668.48, 358,018.50 and 70,203.84

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Solution

The fourth proportional to 238,668.48, 358,018.50 and 70,203.84 is: 105,310.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,668.48 : 358,018.50 = 70,203.84 : x
  2. Step 2: Convert to fraction form
    238,668.48/358,018.50 = 70,203.84/x
  3. Step 3: Cross multiply
    238,668.48x = 358,018.50 × 70,203.84
  4. Step 4: Simplify right side
    238,668.48x = 25,134,273,491.04
  5. Step 5: Solve for x
    x = 25,134,273,491.04/238,668.48
  6. Step 6: Final answer
    x = 105,310.40

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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.