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Finding the Fourth Proportional to 191,048.62, 263,648.64 and 119,470.14

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Solution

The fourth proportional to 191,048.62, 263,648.64 and 119,470.14 is: 164,869.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,048.62 : 263,648.64 = 119,470.14 : x
  2. Step 2: Convert to fraction form
    191,048.62/263,648.64 = 119,470.14/x
  3. Step 3: Cross multiply
    191,048.62x = 263,648.64 × 119,470.14
  4. Step 4: Simplify right side
    191,048.62x = 31,498,139,931.61
  5. Step 5: Solve for x
    x = 31,498,139,931.61/191,048.62
  6. Step 6: Final answer
    x = 164,869.76

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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.