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Finding the Fourth Proportional to 476,717.81, 715,076.10 and 121,732.07

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Solution

The fourth proportional to 476,717.81, 715,076.10 and 121,732.07 is: 182,597.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,717.81 : 715,076.10 = 121,732.07 : x
  2. Step 2: Convert to fraction form
    476,717.81/715,076.10 = 121,732.07/x
  3. Step 3: Cross multiply
    476,717.81x = 715,076.10 × 121,732.07
  4. Step 4: Simplify right side
    476,717.81x = 87,047,690,285.15
  5. Step 5: Solve for x
    x = 87,047,690,285.15/476,717.81
  6. Step 6: Final answer
    x = 182,597.94

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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.