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Finding the Fourth Proportional to 328,816.68, 492,928.80 and 118,306.52

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Solution

The fourth proportional to 328,816.68, 492,928.80 and 118,306.52 is: 177,353.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,816.68 : 492,928.80 = 118,306.52 : x
  2. Step 2: Convert to fraction form
    328,816.68/492,928.80 = 118,306.52/x
  3. Step 3: Cross multiply
    328,816.68x = 492,928.80 × 118,306.52
  4. Step 4: Simplify right side
    328,816.68x = 58,316,690,935.78
  5. Step 5: Solve for x
    x = 58,316,690,935.78/328,816.68
  6. Step 6: Final answer
    x = 177,353.20

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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.