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Finding the Fourth Proportional to 336,462.15, 504,693.18 and 99,802.78

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Solution

The fourth proportional to 336,462.15, 504,693.18 and 99,802.78 is: 149,704.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,462.15 : 504,693.18 = 99,802.78 : x
  2. Step 2: Convert to fraction form
    336,462.15/504,693.18 = 99,802.78/x
  3. Step 3: Cross multiply
    336,462.15x = 504,693.18 × 99,802.78
  4. Step 4: Simplify right side
    336,462.15x = 50,369,783,988.21
  5. Step 5: Solve for x
    x = 50,369,783,988.21/336,462.15
  6. Step 6: Final answer
    x = 149,704.16

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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.