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Finding the Fourth Proportional to 317,250.95, 476,001.02 and 139,633.43

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Solution

The fourth proportional to 317,250.95, 476,001.02 and 139,633.43 is: 209,504.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,250.95 : 476,001.02 = 139,633.43 : x
  2. Step 2: Convert to fraction form
    317,250.95/476,001.02 = 139,633.43/x
  3. Step 3: Cross multiply
    317,250.95x = 476,001.02 × 139,633.43
  4. Step 4: Simplify right side
    317,250.95x = 66,465,652,027.93
  5. Step 5: Solve for x
    x = 66,465,652,027.93/317,250.95
  6. Step 6: Final answer
    x = 209,504.98

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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.