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Finding the Fourth Proportional to 316,499.55, 474,791 and 103,192.55

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Solution

The fourth proportional to 316,499.55, 474,791 and 103,192.55 is: 154,802.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,499.55 : 474,791 = 103,192.55 : x
  2. Step 2: Convert to fraction form
    316,499.55/474,791 = 103,192.55/x
  3. Step 3: Cross multiply
    316,499.55x = 474,791 × 103,192.55
  4. Step 4: Simplify right side
    316,499.55x = 48,994,894,007.05
  5. Step 5: Solve for x
    x = 48,994,894,007.05/316,499.55
  6. Step 6: Final answer
    x = 154,802.41

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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.