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Finding the Fourth Proportional to 358,580.80, 537,890.64 and 134,000.20

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Solution

The fourth proportional to 358,580.80, 537,890.64 and 134,000.20 is: 201,007.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,580.80 : 537,890.64 = 134,000.20 : x
  2. Step 2: Convert to fraction form
    358,580.80/537,890.64 = 134,000.20/x
  3. Step 3: Cross multiply
    358,580.80x = 537,890.64 × 134,000.20
  4. Step 4: Simplify right side
    358,580.80x = 72,077,453,338.13
  5. Step 5: Solve for x
    x = 72,077,453,338.13/358,580.80
  6. Step 6: Final answer
    x = 201,007.56

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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.