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Finding the Fourth Proportional to 317,788.57, 476,683.63 and 77,903.52

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Solution

The fourth proportional to 317,788.57, 476,683.63 and 77,903.52 is: 116,855.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,788.57 : 476,683.63 = 77,903.52 : x
  2. Step 2: Convert to fraction form
    317,788.57/476,683.63 = 77,903.52/x
  3. Step 3: Cross multiply
    317,788.57x = 476,683.63 × 77,903.52
  4. Step 4: Simplify right side
    317,788.57x = 37,135,333,840.61
  5. Step 5: Solve for x
    x = 37,135,333,840.61/317,788.57
  6. Step 6: Final answer
    x = 116,855.48

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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.