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Finding the Fourth Proportional to 219,473.70, 329,319.90 and 124,776.60

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Solution

The fourth proportional to 219,473.70, 329,319.90 and 124,776.60 is: 187,227.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,473.70 : 329,319.90 = 124,776.60 : x
  2. Step 2: Convert to fraction form
    219,473.70/329,319.90 = 124,776.60/x
  3. Step 3: Cross multiply
    219,473.70x = 329,319.90 × 124,776.60
  4. Step 4: Simplify right side
    219,473.70x = 41,091,417,434.34
  5. Step 5: Solve for x
    x = 41,091,417,434.34/219,473.70
  6. Step 6: Final answer
    x = 187,227.07

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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.