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Finding the Fourth Proportional to 317,703.48, 476,415.18 and 149,271.72

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Solution

The fourth proportional to 317,703.48, 476,415.18 and 149,271.72 is: 223,841.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,703.48 : 476,415.18 = 149,271.72 : x
  2. Step 2: Convert to fraction form
    317,703.48/476,415.18 = 149,271.72/x
  3. Step 3: Cross multiply
    317,703.48x = 476,415.18 × 149,271.72
  4. Step 4: Simplify right side
    317,703.48x = 71,115,313,352.71
  5. Step 5: Solve for x
    x = 71,115,313,352.71/317,703.48
  6. Step 6: Final answer
    x = 223,841.78

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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.