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Finding the Fourth Proportional to 328,626.73, 492,644.76 and 118,117

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Solution

The fourth proportional to 328,626.73, 492,644.76 and 118,117 is: 177,069.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,626.73 : 492,644.76 = 118,117 : x
  2. Step 2: Convert to fraction form
    328,626.73/492,644.76 = 118,117/x
  3. Step 3: Cross multiply
    328,626.73x = 492,644.76 × 118,117
  4. Step 4: Simplify right side
    328,626.73x = 58,189,721,116.92
  5. Step 5: Solve for x
    x = 58,189,721,116.92/328,626.73
  6. Step 6: Final answer
    x = 177,069.35

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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.