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Finding the Fourth Proportional to 317,429.28, 476,171.88 and 117,751.80

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Solution

The fourth proportional to 317,429.28, 476,171.88 and 117,751.80 is: 176,638.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,429.28 : 476,171.88 = 117,751.80 : x
  2. Step 2: Convert to fraction form
    317,429.28/476,171.88 = 117,751.80/x
  3. Step 3: Cross multiply
    317,429.28x = 476,171.88 × 117,751.80
  4. Step 4: Simplify right side
    317,429.28x = 56,070,095,979.38
  5. Step 5: Solve for x
    x = 56,070,095,979.38/317,429.28
  6. Step 6: Final answer
    x = 176,638.07

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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.