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Finding the Fourth Proportional to 317,658.85, 476,119.01 and 117,851.79

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Solution

The fourth proportional to 317,658.85, 476,119.01 and 117,851.79 is: 176,640.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,658.85 : 476,119.01 = 117,851.79 : x
  2. Step 2: Convert to fraction form
    317,658.85/476,119.01 = 117,851.79/x
  3. Step 3: Cross multiply
    317,658.85x = 476,119.01 × 117,851.79
  4. Step 4: Simplify right side
    317,658.85x = 56,111,479,661.60
  5. Step 5: Solve for x
    x = 56,111,479,661.60/317,658.85
  6. Step 6: Final answer
    x = 176,640.70

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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.