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Finding the Fourth Proportional to 219,670.76, 303,145.80 and 119,068.76

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Solution

The fourth proportional to 219,670.76, 303,145.80 and 119,068.76 is: 164,314.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,670.76 : 303,145.80 = 119,068.76 : x
  2. Step 2: Convert to fraction form
    219,670.76/303,145.80 = 119,068.76/x
  3. Step 3: Cross multiply
    219,670.76x = 303,145.80 × 119,068.76
  4. Step 4: Simplify right side
    219,670.76x = 36,095,194,505.21
  5. Step 5: Solve for x
    x = 36,095,194,505.21/219,670.76
  6. Step 6: Final answer
    x = 164,314.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.