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Finding the Fourth Proportional to 219,798.43, 329,694.01 and 70,036.68

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Solution

The fourth proportional to 219,798.43, 329,694.01 and 70,036.68 is: 105,053.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,798.43 : 329,694.01 = 70,036.68 : x
  2. Step 2: Convert to fraction form
    219,798.43/329,694.01 = 70,036.68/x
  3. Step 3: Cross multiply
    219,798.43x = 329,694.01 × 70,036.68
  4. Step 4: Simplify right side
    219,798.43x = 23,090,674,937.55
  5. Step 5: Solve for x
    x = 23,090,674,937.55/219,798.43
  6. Step 6: Final answer
    x = 105,053.87

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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.