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Finding the Fourth Proportional to 219,368.76, 329,226.24 and 112,748.46

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Solution

The fourth proportional to 219,368.76, 329,226.24 and 112,748.46 is: 169,211.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,368.76 : 329,226.24 = 112,748.46 : x
  2. Step 2: Convert to fraction form
    219,368.76/329,226.24 = 112,748.46/x
  3. Step 3: Cross multiply
    219,368.76x = 329,226.24 × 112,748.46
  4. Step 4: Simplify right side
    219,368.76x = 37,119,751,551.59
  5. Step 5: Solve for x
    x = 37,119,751,551.59/219,368.76
  6. Step 6: Final answer
    x = 169,211.66

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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.