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Finding the Fourth Proportional to 119,527.72, 164,925.72 and 74,216.73

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Solution

The fourth proportional to 119,527.72, 164,925.72 and 74,216.73 is: 102,405.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,527.72 : 164,925.72 = 74,216.73 : x
  2. Step 2: Convert to fraction form
    119,527.72/164,925.72 = 74,216.73/x
  3. Step 3: Cross multiply
    119,527.72x = 164,925.72 × 74,216.73
  4. Step 4: Simplify right side
    119,527.72x = 12,240,247,631.30
  5. Step 5: Solve for x
    x = 12,240,247,631.30/119,527.72
  6. Step 6: Final answer
    x = 102,405.10

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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.