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Finding the Fourth Proportional to 328,674, 493,084.85 and 104,047.90

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Solution

The fourth proportional to 328,674, 493,084.85 and 104,047.90 is: 156,095.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,674 : 493,084.85 = 104,047.90 : x
  2. Step 2: Convert to fraction form
    328,674/493,084.85 = 104,047.90/x
  3. Step 3: Cross multiply
    328,674x = 493,084.85 × 104,047.90
  4. Step 4: Simplify right side
    328,674x = 51,304,443,164.32
  5. Step 5: Solve for x
    x = 51,304,443,164.32/328,674
  6. Step 6: Final answer
    x = 156,095.23

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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.