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Finding the Fourth Proportional to 219,784.55, 329,726.54 and 70,033.37

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Solution

The fourth proportional to 219,784.55, 329,726.54 and 70,033.37 is: 105,065.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,784.55 : 329,726.54 = 70,033.37 : x
  2. Step 2: Convert to fraction form
    219,784.55/329,726.54 = 70,033.37/x
  3. Step 3: Cross multiply
    219,784.55x = 329,726.54 × 70,033.37
  4. Step 4: Simplify right side
    219,784.55x = 23,091,859,301.09
  5. Step 5: Solve for x
    x = 23,091,859,301.09/219,784.55
  6. Step 6: Final answer
    x = 105,065.89

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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.