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Finding the Fourth Proportional to 191,263.92, 263,957.40 and 106,388.88

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Solution

The fourth proportional to 191,263.92, 263,957.40 and 106,388.88 is: 146,823.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,263.92 : 263,957.40 = 106,388.88 : x
  2. Step 2: Convert to fraction form
    191,263.92/263,957.40 = 106,388.88/x
  3. Step 3: Cross multiply
    191,263.92x = 263,957.40 × 106,388.88
  4. Step 4: Simplify right side
    191,263.92x = 28,082,132,153.71
  5. Step 5: Solve for x
    x = 28,082,132,153.71/191,263.92
  6. Step 6: Final answer
    x = 146,823.99

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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.