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Finding the Fourth Proportional to 358,720.08, 537,893.28 and 133,895.64

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Solution

The fourth proportional to 358,720.08, 537,893.28 and 133,895.64 is: 200,773.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,720.08 : 537,893.28 = 133,895.64 : x
  2. Step 2: Convert to fraction form
    358,720.08/537,893.28 = 133,895.64/x
  3. Step 3: Cross multiply
    358,720.08x = 537,893.28 × 133,895.64
  4. Step 4: Simplify right side
    358,720.08x = 72,021,564,977.30
  5. Step 5: Solve for x
    x = 72,021,564,977.30/358,720.08
  6. Step 6: Final answer
    x = 200,773.72

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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.