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Finding the Fourth Proportional to 194,633.90, 291,950.85 and 155,267.90

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Solution

The fourth proportional to 194,633.90, 291,950.85 and 155,267.90 is: 232,901.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,633.90 : 291,950.85 = 155,267.90 : x
  2. Step 2: Convert to fraction form
    194,633.90/291,950.85 = 155,267.90/x
  3. Step 3: Cross multiply
    194,633.90x = 291,950.85 × 155,267.90
  4. Step 4: Simplify right side
    194,633.90x = 45,330,595,382.72
  5. Step 5: Solve for x
    x = 45,330,595,382.72/194,633.90
  6. Step 6: Final answer
    x = 232,901.85

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1.5x scale

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.