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Finding the Fourth Proportional to 353,813.52, 530,621.72 and 117,174.64

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Solution

The fourth proportional to 353,813.52, 530,621.72 and 117,174.64 is: 175,729.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,813.52 : 530,621.72 = 117,174.64 : x
  2. Step 2: Convert to fraction form
    353,813.52/530,621.72 = 117,174.64/x
  3. Step 3: Cross multiply
    353,813.52x = 530,621.72 × 117,174.64
  4. Step 4: Simplify right side
    353,813.52x = 62,175,409,017.18
  5. Step 5: Solve for x
    x = 62,175,409,017.18/353,813.52
  6. Step 6: Final answer
    x = 175,729.32

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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.